Hansen FF Series Flat Face Couplings

Danfoss Hansen FF Series flat face dry break couplings are built for hydraulic and fluid transfer service where ISO 16028 interchange, low air inclusion, and cleaner no-spill connections are important.

Series Overview

Flat face couplings built for quick connection and no-spill performance

Danfoss’ FF Series flat face couplings are designed for applications where quick, easy connections and no-spill performance are essential. The series is a strong fit when global interchangeability with other manufacturers is important and is available in sizes from 1/4" through 2" to meet a wide range of hydraulic connection requirements.

Product Features

Connection and Performance

Meets or exceeds the ISO 16028 standard
Push-to-connect flat face design for quick hydraulic hookup
Standard sleeve lock helps prevent accidental disconnection
Color identification rings are available to help prevent crossing of lines

Materials and Sealing

High-resistant carbon steel body with Dura-Kote plating for corrosion resistance
Dura-Kote plating is nickel-free, solvent-free, and supports RoHS, ELV, and REACH requirements
Standard seal material is NBR + AU
Available seal options include NBR + AU, FKM, EPDM, and HNBR on selected configurations

Applications

Common applications

Mobile Equipment

Construction equipment
Agricultural equipment
Utility vehicles
On-highway service fleets

Hydraulic Service

Hydraulic tool circuits
General hydraulic maintenance
Rental fleet hookups
Applications where cleaner disconnects matter

Industrial Transfer

Fluid transfer systems
In-plant hydraulics
Contamination-sensitive connections
ISO 16028 interchange service points

Applications & Markets

Hydraulic and Fluid Transfer
Construction Equipment
Agricultural Equipment
Utility Vehicles
On-Highway Vehicles
Stationary In-Plant Hydraulics and Fluid Transfer

Flow Data

FF Series flow data

Physical Characteristics

FF operating profile

ISO Size	Coupling Size	Max Pressure Connected	Max Pressure Plug	Max Pressure Socket	Burst Connected	Burst Plug	Burst Socket	Rated Flow	Fluid Loss	Air Inclusion	Force to Connect
6.3	1/4	400 bar / 5,800 psi	400 bar / 5,800 psi	400 bar / 5,800 psi	1,400 bar / 20,300 psi	1,400 bar / 20,300 psi	1,400 bar / 20,300 psi	18 lpm / 4.8 gpm	0.004 ml-cc	0.007 ml-cc	80 N / 18.0 lbs
10	3/8	400 bar / 5,800 psi	400 bar / 5,800 psi	400 bar / 5,800 psi	1,400 bar / 20,300 psi	1,400 bar / 20,300 psi	1,400 bar / 20,300 psi	40 lpm / 10.6 gpm	0.006 ml-cc	0.010 ml-cc	140 N / 31.5 lbs
12.5	1/2	400 bar / 5,800 psi	400 bar / 5,800 psi	400 bar / 5,800 psi	1,400 bar / 20,300 psi	1,400 bar / 20,300 psi	1,400 bar / 20,300 psi	77 lpm / 20.3 gpm	0.012 ml-cc	0.013 ml-cc	195 N / 43.8 lbs
16	5/8	400 bar / 5,800 psi	400 bar / 5,800 psi	400 bar / 5,800 psi	1,400 bar / 20,300 psi	1,400 bar / 20,300 psi	1,400 bar / 20,300 psi	82 lpm / 21.7 gpm	0.016 ml-cc	0.030 ml-cc	205 N / 46.1 lbs
19	3/4	400 bar / 5,800 psi	400 bar / 5,800 psi	400 bar / 5,800 psi	1,300 bar / 18,850 psi	1,300 bar / 18,850 psi	1,400 bar / 20,300 psi	114 lpm / 30.1 gpm	0.034 ml-cc	0.015 ml-cc	215 N / 48.3 lbs
25	1	400 bar / 5,800 psi	400 bar / 5,800 psi	400 bar / 5,800 psi	1,260 bar / 18,270 psi	1,260 bar / 18,270 psi	1,260 bar / 18,270 psi	184 lpm / 48.6 gpm	0.032 ml-cc	0.033 ml-cc	260 N / 58.5 lbs
1-1/4	Non-ISO	300 bar / 4,350 psi	300 bar / 4,350 psi	300 bar / 4,350 psi	900 bar / 13,050 psi	900 bar / 13,050 psi	900 bar / 13,050 psi	260 lpm / 68.7 gpm	0.170 ml-cc	0.053 ml-cc	200 N / 45.0 lbs
1-1/2	Non-ISO	300 bar / 4,350 psi	300 bar / 4,350 psi	270 bar / 3,915 psi	900 bar / 13,050 psi	900 bar / 13,050 psi	810 bar / 11,745 psi	450 lpm / 118.9 gpm	0.265 ml-cc	0.445 ml-cc	385 N / 86.6 lbs
2	Non-ISO	300 bar / 4,350 psi	300 bar / 4,350 psi	225 bar / 3,260 psi	900 bar / 13,050 psi	900 bar / 13,050 psi	675 bar / 9,790 psi	700 lpm / 184.9 gpm	0.390 ml-cc	0.260 ml-cc	375 N / 84.3 lbs

400 bar applies to static, steady, or non-pulsed service. For dynamic applications with moderate hydraulic shock, the ISO pressure rating is 350 bar.

Seal and Option Codes

Seal elastomer temperature ranges

Seal Elastomer	Part Number Code	ISO Sizes 6FF to 25FF	Non-ISO Sizes 32FF to 50FF
NBR (Nitrile) + AU (Polyurethane)	Base	-25C to +100C / -13F to +212F	-20C to +100C / -4F to +212F
FKM	143	-20C to +200C / -4F to +392F	-15C to +180C / +5F to +356F
EPDM (Ethylene-Propylene)	192	-40C to +150C / -40F to +302F	On request
HNBR	507	-32C to +150C / -25F to +302F	On request
Kalrez 6375	242	-20C to +275C / -4F to +527F	On request
Generic FFKM (Perfluorocarbon)	503	-15C to +275C / +5F to +527F	On request

Temperature ranges are shown the same way the FF Series source table presents them, with separate ranges for ISO and non-ISO sizes.

Browse FF Tables

Choose the part family you want to work through

Sockets (Female)

Female thread socket

Hansen FF Series product figure and end-connection reference

Socket Filters

Refine socket part numbers

Body Size

Thread

Seal Variation

Standard view shows the core socket part numbers, with seal codes available where matching options exist.

Part Numbers	Body Size	ISO Size	Flow Dia.	NPT	BSPP	ISO 6149-1	SAE J1926-1	Danfoss S013A	Fig.	A	B	C	Hex	Weight (lb)	Notes
6FFS25, 6FFS25143, 6FFS25192	1/4	6.3	6 mm	1/4-18f	–	–	–	–	1	2.13 in / 54 mm	1.06 in / 27 mm	0.94 in / 24 mm	0.87 in / 22 mm	–	Base, FKM, and EPDM options.
6FFS25BS, 6FFS25BS143	1/4	6.3	6 mm	–	1/4-19	–	–	–	1	2.13 / 54	1.06 / 27	0.94 / 24	0.87 / 22	–	BSPP row with FKM option.
6FFS56UN, 6FFS56UN507	1/4	6.3	6 mm	–	–	–	9/16-18f UNF	–	1	2.17 / 55	1.06 / 27	0.94 / 24	0.87 / 22	–	HNBR option shown with 507 suffix.
10FFS37, 10FFS37143, 10FFS37192, 10FFS37503	3/8	10	8.6 mm	3/8-18f	–	–	–	–	1	2.67 / 67.8	1.26 / 32	1.16 / 29.5	1.06 / 27	–	Shown with FKM, EPDM, and FFKM options.
10FFS37BS	3/8	10	8.6 mm	–	3/8-19	–	–	–	1	2.67 / 67.8	1.26 / 32	1.16 / 29.5	1.06 / 27	–	BSPP configuration.
10FFS50, 10FFS50143	1/2	10	8.6 mm	1/2-14f	–	–	–	–	1	2.79 / 70.8	1.26 / 32	1.16 / 29.5	1.06 / 27	–	Base and FKM option.
10FFS50BS	1/2	10	8.6 mm	–	1/2-14	–	–	–	1	2.79 / 70.8	1.26 / 32	1.16 / 29.5	1.06 / 27	–	BSPP configuration.
10FFS56UN, 10FFS56UN143	9/16	10	8.6 mm	–	–	–	9/16-18f UNF	–	1	2.79 / 70.8	1.26 / 32	1.16 / 29.5	1.06 / 27	–	UNF base and FKM option.
10FFS75UN	3/4	10	8.6 mm	–	–	–	3/4-16f UNF	–	1	2.79 / 70.8	1.26 / 32	1.16 / 29.5	1.06 / 27	–	UNF female thread row.
10FFS87UN	7/8	10	8.6 mm	–	–	–	7/8-14f UNF	–	1	2.91 / 73.8	1.26 / 32	1.30 / 33	1.18 / 30	–	Large-port UNF female thread row.
12FFS106UN	1-1/16	12.5	11 mm	–	–	–	1 1/16-12f UN	–	1	3.26 / 83	1.50 / 38.2	1.56 / 39.5	1.42 / 36	–	UN straight thread entry.
12FFS50, 12FFS50143, 12FFS50192, 12FFS50503	1/2	12.5	11 mm	1/2-14f	–	–	–	–	1	3.03 / 77	1.50 / 38.2	1.56 / 39.5	1.42 / 36	–	Base, FKM, EPDM, and FFKM options.
12FFS50BS, 12FFS50BS143	1/2	12.5	11 mm	–	1/2-14	–	–	–	1	3.03 / 77	1.50 / 38.2	1.56 / 39.5	1.42 / 36	–	BSPP base and FKM option.
12FFS75	3/4	12.5	11 mm	3/4-14f	–	–	–	–	1	3.14 / 80	1.50 / 38.2	1.56 / 39.5	1.42 / 36	–	Standard NPT socket.
12FFS75BS	3/4	12.5	11 mm	–	3/4-14	–	–	–	1	3.14 / 80	1.50 / 38.2	1.56 / 39.5	1.42 / 36	–	BSPP version.
12FFS75UN	3/4	12.5	11 mm	–	–	–	3/4-16f UNF	–	1	3.03 / 77	1.50 / 38.2	1.56 / 39.5	1.42 / 36	–	UNF version.
12FFS87UN	7/8	12.5	11 mm	–	–	–	7/8-14f UNF	–	1	3.14 / 80	1.50 / 38.2	1.56 / 39.5	1.42 / 36	–	UNF large-port version.
16FFS106UN	1-1/16	16	13 mm	–	–	–	1 1/16-12f UN	–	1	3.50 / 89	1.66 / 42.2	1.56 / 39.5	1.42 / 36	–	UN straight thread entry.
16FFS50	1/2	16	13 mm	1/2-14f	–	–	–	–	1	3.27 / 83	1.66 / 42.2	1.56 / 39.5	1.42 / 36	–	Base NPT row.
16FFS75	3/4	16	13 mm	3/4-14f	–	–	–	–	1	3.39 / 86	1.66 / 42.2	1.56 / 39.5	1.42 / 36	–	Base NPT row.
16FFS75BS	3/4	16	13 mm	–	3/4-14	–	–	–	1	3.39 / 86	1.66 / 42.2	1.56 / 39.5	1.42 / 36	–	BSPP version.
16FFS75UN	3/4	16	13 mm	–	–	–	3/4-16f UNF	–	1	3.27 / 83	1.66 / 42.2	1.56 / 39.5	1.42 / 36	–	UNF version.
16FFS87UN	7/8	16	13 mm	–	–	–	7/8-14f UNF	–	1	3.39 / 86	1.66 / 42.2	1.56 / 39.5	1.42 / 36	–	UNF large-port version.
19FFS75, 19FFS75143	3/4	19	15 mm	3/4-14f	–	–	–	–	1	3.80 / 96.6	1.82 / 46.2	1.81 / 46	1.65 / 42	–	Validated base and FKM row.
19FFS75BS	3/4	19	15 mm	–	3/4-14	–	–	–	1	3.80 / 96.6	1.82 / 46.2	1.81 / 46	1.65 / 42	–	BSPP version.
19FFS100	1	19	15 mm	1-11.5f	–	–	–	–	1	3.80 / 96.6	1.82 / 46.2	1.81 / 46	1.65 / 42	–	Standard 1-inch NPT socket.
19FFS100BS	1	19	15 mm	–	1-11	–	–	–	1	3.80 / 96.6	1.82 / 46.2	1.81 / 46	1.65 / 42	–	BSPP 1-inch socket.
19FFS106UN	1-1/16	19	15 mm	–	–	–	1 1/16-12f UN	–	1	3.80 / 96.6	1.82 / 46.2	1.81 / 46	1.65 / 42	–	UN straight thread entry.
19FFS131UN	1-5/16	19	15 mm	–	–	–	1 5/16-12f UN	–	1	3.80 / 96.6	1.82 / 46.2	1.81 / 46	1.65 / 42	–	UN straight thread entry.
25FFS100	1	25	18 mm	1-11.5f	–	–	–	–	1	4.07 / 103.5	2.17 / 55.2	2.36 / 60	2.17 / 55	–	Standard 1-inch NPT socket.
25FFS100BS	1	25	18 mm	–	1-11	–	–	–	1	4.07 / 103.5	2.17 / 55.2	2.36 / 60	2.17 / 55	–	BSPP 1-inch socket.
25FFS125	1-1/4	25	18 mm	1 1/4-11.5f	–	–	–	–	1	4.07 / 103.5	2.17 / 55.2	2.36 / 60	2.17 / 55	–	Base 1-1/4 NPT row.
25FFS131UN	1-5/16	25	18 mm	–	–	–	1 5/16-12f UN	–	1	4.07 / 103.5	2.17 / 55.2	2.36 / 60	2.17 / 55	2.77	Catalog weight text appears truncated in the PDF extract and should be re-checked visually.
25FFS162UN	1-5/8	25	18 mm	–	–	–	1 5/8-12f UN	–	1	4.07 / 103.5	2.17 / 55.2	2.36 / 60	2.17 / 55	–	UN straight thread entry.
32FFS125, 32FFS125143	1-1/4	Non-ISO	22.1 mm	1 1/4-11.5	–	–	–	–	1	4.93 / 125.2	2.55 / 64.8	2.36 / 60	2.17 / 55	4.22	Validated base and FKM row.
32FFS162UN, 32FFS162UN143	1-5/8	Non-ISO	22.1 mm	–	–	–	1 5/8-12 UN	–	1	4.93 / 125.2	2.55 / 64.8	2.36 / 60	2.17 / 55	4.16	Validated UN base and FKM row.
40FFS150, 40FFS150143	1-1/2	Non-ISO	30.1 mm	1 1/2-11.5	–	–	–	–	1	5.01 / 127.4	3.13 / 79.5	2.76 / 70	2.56 / 65	6.16	Validated base and FKM row.
40FFS187UN	1-7/8	Non-ISO	30.1 mm	–	–	–	1 7/8-12 UN	–	1	5.01 / 127.4	3.13 / 79.5	2.76 / 70	2.56 / 65	6.10	UN straight thread entry.
50FFS200	2	Non-ISO	39.2 mm	2-11.5	–	–	–	–	1	6.17 / 156.8	3.84 / 97.5	3.46 / 87.8	3.15 / 80	10.87	Base large-size NPT socket.
50FFS250UN	2-1/2	Non-ISO	39.2 mm	–	–	–	2 1/2-12 UN	–	1	6.17 / 156.8	3.84 / 97.5	3.46 / 87.8	3.15 / 80	10.64	Large-size UN straight thread socket.

Male thread socket

Hansen FF Series figure 2 alternate image

Part Numbers	Body Size	ISO Size	Flow Dia.	ISO 8434-1	SAE J1926-2	Fig.	A	B	C	H	Hex	Weight (lb)	Notes
10FFS56ORM	3/8	10	8.6 mm	–	9/16-18f UNF	2	2.61 / 66.4	1.26 / 32	1.06 / 27	0.47 / 12	0.94 / 23.8	–	ORB-style socket row from page 63.
10FFS75ORM	3/4	10	8.6 mm	–	3/4-16f UNF	2	2.61 / 66.4	1.26 / 32	1.06 / 27	0.55 / 14	0.94 / 23.8	–	ORB-style socket row from page 63.
12FFS16S143	1/2	12	11 mm	16S – M24x1,5	–	2	2.51 / 64	1.50 / 38.2	1.56 / 39.5	0.55 / 14	1.42 / 36	1.01	Validated FKM row from the male-thread socket table.

Plugs (Male)

Female Thread Plug

Plug Filters

Refine plug part numbers

Body Size

Thread

Seal Variation

Standard view shows the core plug part numbers, with seal codes available where matching options exist.

Part Numbers	Body Size	ISO Size	Flow Dia.	NPT	BSPP	ISO 6149-1	SAE J1926-1	Fig.	D	E	F	G	Hex	Weight (lb)	Notes
6FFP25, 6FFP25143, 6FFP25192	1/4	6.3	6 mm	1/4-18f	–	–	–	3	2.01 / 51	0.64 / 16.2	0.94 / 24	1.58 / 40.1	0.87 / 22	–	Validated base, FKM, and EPDM versions.
6FFP56UN, 6FFP56UN507	1/4	6.3	6 mm	–	–	–	9/16-18f UNF	3	2.05 / 52	0.64 / 16.2	0.94 / 24	1.62 / 41.1	0.87 / 22	–	Validated base and HNBR row.
10FFP37, 10FFP37143, 10FFP37503	3/8	10	8.6 mm	3/8-18f	–	–	–	3	2.56 / 65	0.78 / 19.7	1.16 / 29.5	1.96 / 49.7	1.06 / 27	–	Standard, FKM, and FFKM versions.
10FFP37BS	3/8	10	8.6 mm	–	3/8-19	–	–	3	2.56 / 65	0.78 / 19.7	1.16 / 29.5	1.96 / 49.7	1.06 / 27	–	BSPP female thread plug.
10FFP50	1/2	10	8.6 mm	1/2-14f	–	–	–	3	2.68 / 68	0.78 / 19.7	1.16 / 29.5	2.08 / 52.7	1.06 / 27	–	Base 1/2 NPT row.
10FFP50BS	1/2	10	8.6 mm	–	1/2-14	–	–	3	2.68 / 68	0.78 / 19.7	1.16 / 29.5	2.08 / 52.7	1.06 / 27	–	BSPP row.
10FFP56UN	9/16	10	8.6 mm	–	–	–	9/16-18f UNF	3	2.68 / 68	0.78 / 19.7	1.16 / 29.5	2.08 / 52.7	1.06 / 27	–	UNF female-thread plug.
10FFP75UN	3/4	10	8.6 mm	–	–	–	3/4-16f UNF	3	2.68 / 68	0.78 / 19.7	1.16 / 29.5	2.08 / 52.7	1.06 / 27	–	UNF female-thread plug.
10FFP87UN, 10FFP87UN143	7/8	10	8.6 mm	–	–	–	7/8-14f UNF	3	2.80 / 71	0.78 / 19.7	1.30 / 33	2.19 / 55.7	1.18 / 30	–	Validated base and FKM row.
12FFP106UN	1-1/16	12.5	11 mm	–	–	–	1 1/16-12f UN	3	2.95 / 75	0.96 / 24.5	1.56 / 39.5	2.28 / 58	1.42 / 36	–	UN straight thread entry.
12FFP50, 12FFP50143, 12FFP50192, 12FFP50503	1/2	12.5	11 mm	1/2-14f	–	–	–	3	2.71 / 69	0.96 / 24.5	1.56 / 39.5	2.05 / 52	1.42 / 36	–	Validated base, FKM, EPDM, and FFKM versions.
12FFP50BS, 12FFP50BS143	1/2	12.5	11 mm	–	1/2-14	–	–	3	2.71 / 69	0.96 / 24.5	1.56 / 39.5	2.05 / 52	1.42 / 36	–	Validated BSPP base and FKM row.
12FFP75	3/4	12.5	11 mm	3/4-14f	–	–	–	3	2.83 / 72	0.96 / 24.5	1.56 / 39.5	2.16 / 55	1.42 / 36	–	Base 3/4 NPT row.
12FFP75BS	3/4	12.5	11 mm	–	3/4-14	–	–	3	2.83 / 72	0.96 / 24.5	1.56 / 39.5	2.16 / 55	1.42 / 36	–	BSPP row.
12FFP75UN	3/4	12.5	11 mm	–	–	–	3/4-16f UNF	3	2.71 / 69	0.96 / 24.5	1.56 / 39.5	2.05 / 52	1.42 / 36	–	UNF row.
12FFP87UN	7/8	12.5	11 mm	–	–	–	7/8-14f UNF	3	2.83 / 72	0.96 / 24.5	1.56 / 39.5	2.16 / 55	1.42 / 36	–	Large-port UNF row.
16FFP106UN	1-1/16	16	13 mm	–	–	–	1 1/16-12f UN	3	2.95 / 75	1.06 / 27	1.56 / 39.5	2.28 / 58	1.42 / 36	–	UN straight thread entry.
16FFP50	1/2	16	13 mm	1/2-14f	–	–	–	3	2.71 / 69	1.06 / 27	1.56 / 39.5	2.05 / 52	1.42 / 36	–	Base NPT row.
16FFP75	3/4	16	13 mm	3/4-14f	–	–	–	3	2.83 / 72	1.06 / 27	1.56 / 39.5	2.16 / 55	1.42 / 36	–	Base NPT row.
16FFP75BS	3/4	16	13 mm	–	3/4-14	–	–	3	2.83 / 72	1.06 / 27	1.56 / 39.5	2.16 / 55	1.42 / 36	–	BSPP row.
16FFP75UN	3/4	16	13 mm	–	–	–	3/4-16f UNF	3	2.71 / 69	1.06 / 27	1.56 / 39.5	2.05 / 52	1.42 / 36	–	UNF row.
16FFP87UN	7/8	16	13 mm	–	–	–	7/8-14f UNF	3	2.83 / 72	1.06 / 27	1.56 / 39.5	2.16 / 55	1.42 / 36	–	Large-port UNF row.
19FFP75, 19FFP75143, 19FFP75BS143	3/4	19	15 mm	3/4-14f	3/4-14	–	–	3	3.69 / 93.8	1.18 / 29.9	1.81 / 46	2.84 / 72	1.65 / 42	–	Validated base NPT, FKM, and BSPP FKM entries.
19FFP100	1	19	15 mm	1-11.5f	–	–	–	3	3.69 / 93.8	1.18 / 29.9	1.81 / 46	2.84 / 72	1.65 / 42	–	Standard 1-inch NPT plug.
19FFP100BS	1	19	15 mm	–	1-11	–	–	3	3.69 / 93.8	1.18 / 29.9	1.81 / 46	2.84 / 72	1.65 / 42	–	BSPP 1-inch plug.
19FFP106UN	1-1/16	19	15 mm	–	–	–	1 1/16-12f UN	3	3.69 / 93.8	1.18 / 29.9	1.81 / 46	2.84 / 72	1.65 / 42	–	UN straight thread entry.
19FFP131UN	1-5/16	19	15 mm	–	–	–	1 5/16-12f UN	3	3.69 / 93.8	1.18 / 29.9	1.81 / 46	2.84 / 72	1.65 / 42	–	UN straight thread entry.
25FFP100, 25FFP100143	1	25	18 mm	1-11.5f	–	–	–	3	4.12 / 104.6	1.42 / 36	2.36 / 60	3.22 / 81.7	2.17 / 55	–	Standard and FKM 1-inch NPT plug.
25FFP100BS	1	25	18 mm	–	1-11	–	–	3	4.12 / 104.6	1.42 / 36	2.36 / 60	3.22 / 81.7	2.17 / 55	–	BSPP 1-inch plug.
25FFP125, 25FFP125143	1-1/4	25	18 mm	1 1/4-11.5f	–	–	–	3	4.12 / 104.6	1.42 / 36	2.36 / 60	3.22 / 81.7	2.17 / 55	–	Validated base and FKM entry.
25FFP131UN	1-5/16	25	18 mm	–	–	–	1 5/16-12f UN	3	4.12 / 104.6	1.42 / 36	2.36 / 60	3.22 / 81.7	2.17 / 55	2.09	UN straight thread entry.
25FFP162UN	1-5/8	25	18 mm	–	–	–	1 5/8-12f UN	3	4.12 / 104.6	1.42 / 36	2.36 / 60	3.22 / 81.7	2.17 / 55	–	UN straight thread entry.
32FFP125, 32FFP125143	1-1/4	Non-ISO	22.1 mm	1 1/4-11.5	–	–	–	3	4.15 / 105.5	1.73 / 44	2.36 / 60	3.24 / 82.3	2.17 / 55	2.63	Validated base and FKM entry.
32FFP162UN, 32FFP162UN143	1-5/8	Non-ISO	22.1 mm	–	–	–	1 5/8-12 UN	3	4.15 / 105.5	1.73 / 44	2.36 / 60	3.24 / 82.3	2.17 / 55	2.59	Validated base and FKM entry.
40FFP150, 40FFP150143	1-1/2	Non-ISO	30.1 mm	1 1/2-11.5	–	–	–	3	4.13 / 105	2.24 / 57	2.61 / 66.3	3.01 / 76.5	2.36 / 60	3.15	Validated base and FKM entry.
40FFP187UN	1-7/8	Non-ISO	30.1 mm	–	–	–	1 7/8-12 UN	3	4.13 / 105	2.24 / 57	2.61 / 66.3	3.01 / 76.5	2.36 / 60	3.10	UN straight thread entry.
50FFP200	2	Non-ISO	39.2 mm	2-11.5	–	–	–	3	5.31 / 135	2.87 / 73	3.29 / 83.5	3.80 / 96.6	2.95 / 75	6.01	Base 2-inch NPT plug.
50FFP250UN	2-1/2	Non-ISO	39.2 mm	–	–	–	2 1/2-12 UN	3	5.31 / 135	2.87 / 73	3.29 / 83.5	3.80 / 96.6	2.95 / 75	5.78	Large-size UN straight thread entry.

Male Thread Plug

Hansen FF Series plug figure 2 alternate image

Part Numbers	Body Size	ISO Size	Flow Dia.	ISO 8434-1	Fig.	D	E	F	G	H	Hex	Weight (lb)	Notes
10FFP56ORM	3/8	10	8.6 mm	9/16-18f UNF	4	2.50 / 63.6	0.78 / 19.7	1.06 / 27	1.90 / 48.3	0.47 / 12	0.94 / 23.8	0.33	Male-thread ORB plug row from page 65.
10FFP75ORM	3/8	10	8.6 mm	3/4-16f UNF	4	2.50 / 63.6	0.78 / 19.7	1.06 / 27	1.90 / 48.3	0.55 / 14	0.94 / 23.8	0.34	Male-thread ORB plug row from page 65.

Dust Caps & Accessories

Dust caps, dust plugs, and color identification accessories

Body Size	Dust Plug	Dust Cap	Use
6FF	SDC6FF	XPDC6FF	Dust protection for 6FF socket and plug halves
10FF	SDC10FF	XPDC10FF	Dust protection for 10FF socket and plug halves
12FF	SDC12FF	XPDC12FF	Dust protection for 12FF socket and plug halves
16FF	SDC16FF	XPDC16FF	Dust protection for 16FF socket and plug halves
19FF	SDC19FF	XPDC19FF	Dust protection for 19FF socket and plug halves
25FF	SDC25FF	XPDC25FF	Dust protection for 25FF socket and plug halves

Hansen FF Series banded color identification accessories

Socket/Female Ring Part Number**

Body Size	Green	Blue	Red	Yellow
10FF	CR10FFSDG	CR10FFSLB	CR10FFSRD	CR10FFSYL
12FF	CR12FFSDG	CR12FFSLB	CR12FFSRD	CR12FFSYL
16FF	CR16FFSDG	CR16FFSLB	CR16FFSRD	–
19FF	CR19FFSDG	CR19FFSLB	CR19FFSRD	CR19FFSYL

** Orders must be in multiples of 10 pcs.

Plug/Male Ring Part Number**

Body Size	Green	Blue	Red	Yellow
10FF	CR10FFPDG	CR10FFPLB	CR10FFPRD	CR10FFPYL
12FF	CR12FFPDG	CR12FFPLB	CR12FFPRD	CR12FFPYL
16FF	CR16FFPDG	CR16FFPLB	CR16FFPRD	–
19FF	CR19FFPDG	CR19FFPLB	CR19FFPRD	CR19FFPYL

** Orders must be in multiples of 10 pcs.

Body Size	Tool	Tool Kit	Use
10FF	CR10FFSP93	CRKIT10FF***	Color-ring installation tooling
12FF	CR12FFSP93	CRKIT12FF***	Color-ring installation tooling
16FF	–	CRKIT16FF***	Color-ring installation tooling
19FF	–	CRKIT19FF***	Color-ring installation tooling

*** The kit consists of a tool plus 10 socket rings and 10 plug rings of each color.

Next Step

Need help with a specific FF Series part number?

If you are cross-referencing an older Hansen FF flat face coupling number or trying to match a specific thread, seal, or accessory option, we can help narrow it down to the right current part.