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4NBF3 by Dixon Valve | Pneumatic Quick Disconnect Coupling | Dix-Lock® N-Series | 3/8" Female BSPP x 1/2" Body Size | Socket | Nitrile Seal | Steel
4NBF3 by Dixon Valve | Pneumatic Quick Disconnect Coupling | Dix-Lock® N-Series | 3/8" Female BSPP x 1/2" Body Size | Socket | Nitrile Seal | Steel
4NBF3 by Dixon Valve | Pneumatic Quick Disconnect Coupling | Dix-Lock® N-Series | 3/8" Female BSPP x 1/2" Body Size | Socket | Nitrile Seal | Steel

4NBF3 by Dixon Valve | Pneumatic Quick Disconnect Coupling | Dix-Lock® N-Series | 3/8" Female BSPP x 1/2" Body Size | Socket | Nitrile Seal | Steel

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Dixon Valve & Coupling
Pneumatic Coupling: Dix-Lock® N-Series Coupler (Female Threads)
Specifications for Variant SKU: 4NBF3 Dixon
Brand: Dix-Lock
Series: N-Series
Shape (Orientation): Straight
Ends Configuration: 3/8in Female BSPP, 3/8in Female MIL-C-3486 QD Interchange
Material(s): Steel
Seal Material(s): Buna-N/Nitrile Rubber
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.
  • Nitrile (Nitrile Rubber) seals standard. Providing a temperature range of -40°F to 250°F (-40°C to 121°C).
  • Steel componentry is plated using ROHS Compliant Trivalent Chrome.
Safety Notes:
  • 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 | Coupler (Female Threads)
Part
Number		 Coupling
Type		 Body
Size		 Threads Material Length Max.
OD		 Hex Pressure Ratings for:
4NBF3 Socket/Female 1/2" 3/8" - 19
Female BSPP		 Steel 1.63"
(41.4mm)		 1.54"
(39.1mm)		 1-3/8" Steel Coupler & Steel Plug:
Max. Working : 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
4NBF4 Socket/Female 1/2" 1/2" - 14
Female BSPP		 Steel 1.63"
(41.4mm)		 1.54"
(39.1mm)		 1-3/8" Steel Coupler & Steel Plug:
Max. Working : 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
4NBF4-B Socket/Female 1/2" 1/2" - 14
Female BSPP		 Brass 1.63"
(41.4mm)		 1.54"
(39.1mm)		 1-3/8" Brass Coupler & Brass Plug:
Max. Working : 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
4NBF6 Socket/Female 1/2" 3/4" - 14
Female BSPP		 Steel 1.63"
(41.4mm)		 1.54"
(39.1mm)		 1-3/8" Steel Coupler & Steel Plug:
Max. Working : 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
4NBF6-B Socket/Female 1/2" 3/4" - 14
Female BSPP		 Brass 1.63"
(41.4mm)		 1.54"
(39.1mm)		 1-3/8" Brass Coupler & Brass Plug:
Max. Working : 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
4NBF8 Socket/Female 1/2" 1" - 11
Female BSPP		 Steel 1.68"
(42.6mm)		 1.73"
(43.9mm)		 1-1/2" Steel Coupler & Steel Plug:
Max. Working : 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
4NBF8-B Socket/Female 1/2" 1" - 11
Female BSPP		 Brass 1.68"
(42.6mm)		 1.73"
(43.9mm)		 1-1/2" -
4NF3 Socket/Female 1/2" 3/8" - 18
Female NPTF		 Steel 1.63"
(41.4mm)		 1.54"
(39.1mm)		 1-3/8" Steel Coupler & Steel Plug:
Max. Working : 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
4NF3-B Socket/Female 1/2" 3/8" - 18
Female NPTF		 Brass 1.63"
(41.4mm)		 1.54"
(39.1mm)		 1-3/8" Brass Coupler & Brass Plug:
Max. Working : 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
4NF4 Socket/Female 1/2" 1/2" - 14
Female NPTF		 Steel 1.63"
(41.4mm)		 1.54"
(39.1mm)		 1-3/8" Steel Coupler & Steel Plug:
Max. Working : 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
4NF4-B Socket/Female 1/2" 1/2" - 14
Female NPTF		 Brass 1.63"
(41.4mm)		 1.54"
(39.1mm)		 1-3/8" Brass Coupler & Brass Plug:
Max. Working : 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
4NF6 Socket/Female 1/2" 3/4" - 14
Female NPTF		 Steel 1.63"
(41.4mm)		 1.54"
(39.1mm)		 1-3/8" Steel Coupler & Steel Plug:
Max. Working : 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
4NF6-B Socket/Female 1/2" 3/4" - 14
Female NPTF		 Brass 1.63"
(41.4mm)		 1.54"
(39.1mm)		 1-3/8" Brass Coupler & Brass Plug:
Max. Working : 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
4NF6-S Socket/Female 1/2" 3/4" - 14
Female NPTF		 303 Stainless 1.63"
(41.4mm)		 1.54"
(39.1mm)		 1-3/8" 303 S.S. Coupler & 303 S.S. Plug:
Max. Working : 500 PSI (35 Bar)
Burst: 12,600 PSI (865 Bar)
4NF6-SS Socket/Female 1/2" 3/4" - 14
Female NPTF		 316 Stainless 1.63"
(41.4mm)		 1.54"
(39.1mm)		 1-3/8" -
4NF8 Socket/Female 1/2" 1" - 11-1/2
Female NPTF		 Steel 1.68"
(42.6mm)		 1.73"
(43.9mm)		 1-1/2" Steel Coupler & Steel Plug:
Max. Working : 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
4NF8-B Socket/Female 1/2" 1" - 11-1/2
Female NPTF		 Brass 1.68"
(42.6mm)		 1.73"
(43.9mm)		 1-1/2" Brass Coupler & Brass Plug:
Max. Working : 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
4NF8-SS Socket/Female 1/2" 1" - 11-1/2
Female NPTF		 316 Stainless 1.68"
(42.6mm)		 1.73"
(43.9mm)		 1-1/2" -
Dix-Lock N-Series | Plug (Female Threads)
Part
Number		 Coupling
Type		 Body
Size		 Threads Material Length Max.
OD		 Hex Pressure Ratings for:
N4BF3 Plug/Male 1/2" 3/8" - 19
Female BSPP		 Steel 2.92"
(74.0mm)		 1.31"
(33.3mm)		 1-3/16" Steel Coupler & Steel Plug:
Max. Working : 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar) Burst
N4BF4 Plug/Male 1/2" 1/2" - 14
Female BSPP		 Steel 2.92"
(74.0mm)		 1.31"
(33.3mm)		 1-3/16" Steel Coupler & Steel Plug:
Max. Working : 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar) Burst
N4BF4-B Plug/Male 1/2" 1/2" - 14
Female BSPP		 Brass 2.92"
(74.0mm)		 1.31"
(33.3mm)		 1-3/16" Brass Coupler & Brass Plug:
Max. Working : 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar) Burst
N4BF6 Plug/Male 1/2" 3/4" - 14
Female BSPP		 Steel 3.42"
(86.7mm)		 1.50"
(38.1mm)		 1-3/8" Steel Coupler & Steel Plug:
Max. Working : 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar) Burst
N4BF6-B Plug/Male 1/2" 3/4" - 14
Female BSPP		 Brass 3.42"
(86.7mm)		 1.50"
(38.1mm)		 1-3/8" Brass Coupler & Brass Plug:
Max. Working : 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar) Burst
N4BF8 Plug/Male 1/2" 1" - 11
Female BSPP		 Steel 3.59"
(91.2mm)		 1.79"
(45.3mm)		 1-5/8" Steel Coupler & Steel Plug:
Max. Working : 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar) Burst
N4F3 Plug/Male 1/2" 3/8" - 18
Female NPTF		 Steel 2.92"
(74.0mm)		 1.31"
(33.3mm)		 1-3/16" Steel Coupler & Steel Plug:
Max. Working : 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar) Burst
N4F3-B Plug/Male 1/2" 3/8" - 18
Female NPTF		 Brass 2.92"
(74.0mm)		 1.31"
(33.3mm)		 1-3/16" Brass Coupler & Brass Plug:
Max. Working : 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar) Burst
N4F4 Plug/Male 1/2" 1/2" - 14
Female BSPP		 Steel 2.92"
(74.0mm)		 1.31"
(33.3mm)		 1-3/16" Steel Coupler & Steel Plug:
Max. Working : 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar) Burst
N4F4-B Plug/Male 1/2" 1/2" - 14
Female NPTF		 Brass 2.92"
(74.0mm)		 1.31"
(33.3mm)		 1-3/16" Brass Coupler & Brass Plug:
Max. Working : 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar) Burst
N4F6 Plug/Male 1/2" 3/4" - 14
Female NPTF		 Steel 3.42"
(86.7mm)		 1.50"
(38.1mm)		 1-3/8" Steel Coupler & Steel Plug:
Max. Working : 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar) Burst
N4F6-B Plug/Male 1/2" 3/4" - 14
Female NPTF		 Brass 3.42"
(86.7mm)		 1.50"
(38.1mm)		 1-3/8" Brass Coupler & Brass Plug:
Max. Working : 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar) Burst
N4F6-S Plug/Male 1/2" 3/4" - 14
Female NPTF		 303 Stainless 3.42"
(86.7mm)		 1.50"
(38.1mm)		 1-3/8" 303 S.S. Coupler & 303 S.S. Plug:
Max. Working : 500 PSI (35 Bar)
Burst: 12,600 PSI (865 Bar) Burst
N4F6-SS Plug/Male 1/2" 3/4" - 14
Female NPTF		 316 Stainless 3.42"
(86.7mm)		 1.50"
(38.1mm)		 1-3/8" -
N4F8 Plug/Male 1/2" 1" - 11-1/2
Female NPTF		 Steel 3.59"
(91.2mm)		 1.79"
(45.3mm)		 1-5/8" Steel Coupler & Steel Plug:
Max. Working : 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar) Burst
N4F8-B Plug/Male 1/2" 1" - 11-1/2
Female NPTF		 Brass 3.59"
(91.2mm)		 1.79"
(45.3mm)		 1-5/8" Brass Coupler & Brass Plug:
Max. Working : 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar) Burst
N4F8-SS Plug/Male 1/2" 1" - 11-1/2
Female NPTF		 316 Stainless 3.59"
(91.2mm)		 1.79"
(45.3mm)		 1-5/8" -
Dixon Valve & Coupling

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.

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