Parker NS Series

For the complete product listing, please view Catalog 3800 - Quick Coupling Products (19.9 MB PDF).

NS Series Push-To-Connect

NS Series non-spill couplings are designed to minimize spillage and air inclusion when connecting or disconnecting. Couplers and nipples are steel with nitrile seals. 1/2 inch through 1 inch sizes utilize a PTFE back-up ring as additional support to the interface seal.

Applications: Hydraulic hand tools, Utility equipment, Mining equipment

Features:

Rated pressure up to 2500 psi
Positive valve stop prevents flow checking
Heat treated steel nipple and heavy duty sleeve withstand pressure surges
Standard sleeve lock guards against accidental disconnection
Couplings have protective zinc with clear trivalent chromate finish
Standard end configurations include female pipe, straight thread ORB, and BSPP
Alternative seal materials available

NS Series Specifications

Body Size	Rated Pressure	Rated Flow	Temperature Range	Spillage (ml) Max.	Air Inclusion (ml) Max
inches	(psi)	(gpm)	per disconnect	per connect
3/8	2,500	10	-40° to +250°F	0.020	0.010
1/2	2,500	12	-40° to +250°F	0.070	0.020
3/4	2,500	30	-40° to +250°F	0.150	0.050
1	2,500	50	-40° to +250°F	0.220	0.070

NS Series Couplers

Body Size	Part Number	Thread Size	Length	Largest Diameter	Wrench Flats	Weight
inches						(lbs.)
3/8	NS-371-6FP	3/8-18 NPSF	2.10	1.13	1.06	0.36
3/8	NS-371-6FB	G3/8 BSPP	2.10	1.13	1.06	0.38
3/8	NS-371-8FO	3/4-16UNF	2.20	1.13	1.06	0.40
1/2	NS-501-8FP	1/2-14 NPSF	2.88	1.56	1.25	0.84
1/2	NS-501-8FB	G1/2 BSPP	2.95	1.56	1.25	0.74
1/2	NS-501-10FO	7/8-14UNF	2.97	1.56	1.25	0.80
3/4	NS-751-12FP	3/4-14 NPSF	3.19	1.96	1.56	1.48
3/4	NS-751-12FB	G3/4 BSPP	3.38	1.96	1.56	1.54
3/4	NS-751-12FO	1 1/16-12UN	3.51	1.96	1.56	1.58
1	NS-1001-16FP	1-11 1/2 NPSF	3.70	2.25	1.75	2.35
1	NS-1001-16FB	G 1 BSPP	3.81	2.25	1.75	2.36
1	NS-1001-16FO	1 5/16-12UN	3.81	2.25	1.75	2.36

NS Series Nipples

Body Size	Part Number	Thread Size	Overall Length	Exposed Length	Largest Diameter	Wrench Flats	Weight
inches							(lbs.)
3/8	NS-372-6FP	3/8-18 NPSF	1.70	1.17	1.08	0.94	0.16
3/8	NS-372-6FB	G3/8 BSPP	1.78	1.25	1.08	0.94	0.16
3/8	NS-372-8FO	3/4-16UNF	1.91	1.38	1.23	1.06	0.20
1/2	NS-502-8FP	1/2-14 NPSF	1.81	0.69	1.23	1.06	0.20
1/2	NS-502-8FB	G1/2 BSPP	1.95	0.83	1.23	1.06	0.22
1/2	NS-502-10FO	7/8-14UNF	2.14	1.02	1.23	1.06	0.23
3/4	NS-752-12FP	3/4-14 NPSF	2.25	1.12	1.59	1.37	0.48
3/4	NS-752-12FB	G3/4 BSPP	2.47	1.34	1.59	1.37	0.54
3/4	NS-752-12FO	1 1/16-12UN	2.62	1.49	1.59	1.37	0.65
1	NS-1002-16FP	1-11 1/2 NSPF	2.64	1.54	1.88	1.62	0.72
1	NS-1002-16FB	G 1 BSPP	2.78	1.68	1.88	1.62	0.74
1	NS-1002-16FO	1 5/16-12UN	2.78	1.68	1.88	1.62	0.80