Skip to content
Login for the best B2B Wholesale Experience.
Login for the best B2B Wholesale Experience.
N4S3-B by Dixon Valve | Pneumatic Quick Disconnect Coupling | Dix-Lock® N-Series | Hose Barb | 3/8" Hose ID x 1/2" Body Size | Plug | Brass
N4S3-B by Dixon Valve | Pneumatic Quick Disconnect Coupling | Dix-Lock® N-Series | Hose Barb | 3/8" Hose ID x 1/2" Body Size | Plug | Brass
N4S3-B by Dixon Valve | Pneumatic Quick Disconnect Coupling | Dix-Lock® N-Series | Hose Barb | 3/8" Hose ID x 1/2" Body Size | Plug | Brass

N4S3-B by Dixon Valve | Pneumatic Quick Disconnect Coupling | Dix-Lock® N-Series | Hose Barb | 3/8" Hose ID x 1/2" Body Size | Plug | Brass

Save $15.53 Save $15.53
$56.13
$56.13 - $56.13
$56.13
$40.60
$40.60 - $40.60
$40.60

Dixon Valve & Coupling
Pneumatic Coupling: Dix-Lock N-Series Plug (Hose Barb)
Specifications for Variant SKU: N4S3-B Dixon
Brand: Dix-Lock
Series: N-Series
Shape (Orientation): Straight
Ends Configuration: 3/8in Hose Barb, 3/8in Male MIL-C-3486 QD Interchange
Material(s): Brass
Compatibility & Interchange:
  • Bowes Interchange Bayonet Style
  • Interchangeable with Bowes 51000-Series, National Series 'B', MacDonald Quick-Action, Campbell Single-Lock
  • Conforms to MIL-C-3486 and A-A-50431A standards
Construction:
  • Machined components are manufactured using solid bar stock.
  • Stainless steel retaining ring and spring maximize corrosion resistance and extend service life.
  • Steel componentry is plated using ROHS Compliant Trivalent Chrome.
  • Coupling sleeve constructed of cast zinc steel.
Safety Notes:
  • Operating pressure for couplings utilizing hose barb connections may be dramatically reduced to that of the hose rating and/or hose end connection combination. Consult hose manufacturer's catalog for hose end connection ratings. If in doubt, test under controlled conditions for suitability to application.
  • Dixon cannot assume liability for misapplication of production resulting in equipment down-time, lost production, and/or personal injury including death.
  • It is important to be safe when installing quick disconnect couplings into a pneumatic circuit. Never install a pneumatic coupling directly into an air tool, use a piece of hose that is at least 18" long, between the tool and the coupling, to prevent damage to the coupling. To protect the operator, safety devices, such as a safety check valve and safety cable should be installed in case there is a hose or coupling failure.
Additional Information:
Dix-Lock N-Series | Plug (Hose Barb)
Part
Number		 Coupling
Type		 Body
Size		 Hose ID Material Length Max.
OD		 Pressure Ratings for:
N3CS4 Plug/Male 3/8" 1/2" Steel 3.73"
(94.8mm)		 1.13"
(28.6mm)		 Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 7,000 PSI (480 bar)
N4S3 Plug/Male 1/2" 3/8" Steel 4.36"
(110.7mm)		 1.4"
(35.6mm)		 Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
N4S3-B Plug/Male 1/2" 3/8" Brass 4.36"
(110.7mm)		 1.4"
(35.6mm)		 Brass Coupler & Brass Plug:
Max. Working: 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
N4S4 Plug/Male 1/2" 1/2" Steel 4.63"
(117.6mm)		 1.4"
(35.6mm)		 Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
N4S4-B Plug/Male 1/2" 1/2" Brass 4.63"
(117.6mm)		 1.4"
(35.6mm)		 Brass Coupler & Brass Plug:
Max. Working: 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
N4S6 Plug/Male 1/2" 3/4" Steel 4.77"
(121.2mm)		 1.4"
(35.6mm)		 Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
N4S6-B Plug/Male 1/2" 3/4" Brass 4.77"
(121.2mm)		 1.4"
(35.6mm)		 Brass Coupler & Brass Plug:
Max. Working: 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
N4S6-S Plug/Male 1/2" 3/4" 303 Stainless 4.77"
(121.2mm)		 1.4"
(35.6mm)		 303 S.S. Coupler & 303 S.S. Plug:
Max. Working: 500 PSI (35 Bar)
Burst: 12,600 PSI (865 Bar)
N4S6-SS Plug/Male 1/2" 3/4" 316 Stainless 4.77"
(121.2mm)		 1.4"
(35.6mm)		 -
N4S8 Plug/Male 1/2" 1" Steel 4.77"
(121.2mm)		 1.4"
(35.6mm)		 Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
N4S8-B Plug/Male 1/2" 1" Brass 4.77"
(121.2mm)		 1.4"
(35.6mm)		 Brass Coupler & Brass Plug:
Max. Working: 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
N4S8-S Plug/Male 1/2" 1" 303 Stainless 4.77"
(121.2mm)		 1.4"
(35.6mm)		 303 S.S. Coupler & 303 S.S. Plug:
Max. Working: 500 PSI (35 Bar)
Burst: 12,600 PSI (865 Bar)
N4S8-SS Plug/Male 1/2" 1" 316 Stainless 4.77"
(121.2mm)		 1.4"
(35.6mm)		 -
Dix-Lock N-Series | Coupler (Hose Barb)
Part
Number		 Coupling
Type		 Body
Size		 Hose ID Material Length Max.
OD		 Pressure Ratings for:
3NCS4 Socket/Female 3/8" 1/2" Steel 4.74"
(120.4mm)		 0.99"
(25.1mm)		 Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 7,000 PSI (480 bar)
4NS3 Socket/Female 1/2" 3/8" Steel 4.54"
(115.3mm)		 1.4"
(35.6mm)		 Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
4NS3-B Socket/Female 1/2" 3/8" Brass 4.54"
(115.3mm)		 1.4"
(35.6mm)		 Brass Coupler & Brass Plug:
Max. Working: 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
4NS4 Socket/Female 1/2" 1/2" Steel 4.95"
(125.7mm)		 1.4"
(35.6mm)		 Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
4NS4-B Socket/Female 1/2" 1/2" Brass 4.95"
(125.7mm)		 1.4"
(35.6mm)		 Brass Coupler & Brass Plug:
Max. Working: 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
4NS6 Socket/Female 1/2" 3/4" Steel 4.95"
(125.7mm)		 1.4"
(35.6mm)		 Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
4NS6-B Socket/Female 1/2" 3/4" Brass 4.95"
(125.7mm)		 1.4"
(35.6mm)		 Brass Coupler & Brass Plug:
Max. Working: 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
4NS6-S Socket/Female 1/2" 3/4" 303 Stainless 4.95"
(125.7mm)		 1.4"
(35.6mm)		 303 S.S. Coupler & 303 S.S. Plug:
Max. Working: 500 PSI (35 Bar)
Burst: 12,600 PSI (865 Bar)
4NS6-SS Socket/Female 1/2" 3/4" 316 Stainless 4.95"
(125.7mm)		 1.4"
(35.6mm)		 -
4NS8 Socket/Female 1/2" 1" Steel 5.77"
(146.4mm)		 1.4"
(35.6mm)		 Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
4NS8-B Socket/Female 1/2" 1" Brass 5.77"
(146.4mm)		 1.4"
(35.6mm)		 Brass Coupler & Brass Plug:
Max. Working: 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
4NS8-S Socket/Female 1/2" 1" 303 Stainless 5.77"
(146.4mm)		 1.4"
(35.6mm)		 303 S.S. Coupler & 303 S.S. Plug:
Max. Working: 500 PSI (35 Bar)
Burst: 12,600 PSI (865 Bar)
4NS8-SS Socket/Female 1/2" 1" 316 Stainless 5.77"
(146.4mm)		 1.4"
(35.6mm)		 -

Dixon Valve & Coupling

Dixon, founded in 1916, is a premier manufacturer and supplier of hose couplings, valves, dry disconnects, swivels, and other fluid transfer and control products. Our global reach includes a wide range of products for numerous industries including petroleum exploration, refining, transportation, chemical processing, food and beverage, steel, fire protection, construction, mining, and manufacturing.

Shop Parts by Dixon Valve & Coupling