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N4M4-B by Dixon Valve | Pneumatic Quick Disconnect Coupling | Dix-Lock® N-Series | 1/2" Male NPTF x 1/2" Body Size | Plug | Brass
N4M4-B by Dixon Valve | Pneumatic Quick Disconnect Coupling | Dix-Lock® N-Series | 1/2" Male NPTF x 1/2" Body Size | Plug | Brass
N4M4-B by Dixon Valve | Pneumatic Quick Disconnect Coupling | Dix-Lock® N-Series | 1/2" Male NPTF x 1/2" Body Size | Plug | Brass

N4M4-B by Dixon Valve | Pneumatic Quick Disconnect Coupling | Dix-Lock® N-Series | 1/2" Male NPTF x 1/2" Body Size | Plug | Brass

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Dixon Valve & Coupling
Pneumatic Coupling: Dix-Lock N-Series Plug (Male Threads)
Specifications for Variant SKU: N4M4-B Dixon
Brand: Dix-Lock
Series: N-Series
Shape (Orientation): Straight
Ends Configuration: 1/2in Male NPTF, 1/2in 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
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 | Plug (Male Threads)
Part
Number		 Coupling
Type		 Body
Size		 Threads Material Length Max.
OD		 Hex Pressure Ratings for:
N3BM4 Plug/Male 3/8" 1/2" - 14 Male BSPT Steel 3.36"
(85.3mm)		 1.13"
(28.60mm)		 1" Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 7,000 PSI (480 bar)
N3M4 Plug/Male 3/8" 1/2" - 14 Male NPTF Steel 3.36"
(85.3mm)		 1.13"
(28.60mm)		 1" Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 7,000 PSI (480 bar)
N4BM3 Plug/Male 1/2" 3/8" - 19 Male BSPT Steel 3.46"
(87.9mm)		 1.31"
(33.30mm)		 1-3/16" -
N4BM4 Plug/Male 1/2" 1/2" - 14 Male BSPT Steel 3.65"
(92.7mm)		 1.31"
(33.3mm)		 1-3/16" Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
N4BM4-B Plug/Male 1/2" 1/2" - 14 Male BSPT Brass 3.65"
(92.7mm)		 1.31"
(33.3mm)		 1-3/16" Brass Coupler & Brass Plug:
Max. Working: 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
N4BM6 Plug/Male 1/2" 3/4" - 14 Male BSPT Steel 3.65"
(92.7mm)		 1.31"
(33.30mm)		 1-3/16" Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
N4BM6-B Plug/Male 1/2" 3/4" - 14 Male BSPT Brass 3.64"
(92.7mm)		 1.31"
(33.30mm)		 1-3/16" Brass Coupler & Brass Plug:
Max. Working: 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
N4BM8 Plug/Male 1/2" 1" - 11 Male BSPT Steel 3.89"
(98.8mm)		 1.51"
(38.40mm)		 1-3/8" Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
N4BM8-B Plug/Male 1/2" 1" - 11 Male BSPT Brass 3.89"
(98.8mm)		 1.51"
(38.40mm)		 1-3/8" Brass Coupler & Brass Plug:
Max. Working: 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
N4M3 Plug/Male 1/2" 3/8" - 18 Male NPTF Steel 3.46"
(87.9mm)		 1.31"
(33.30mm)		 1-3/16" Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
N4M3-B Plug/Male 1/2" 3/8" - 18 Male NPTF Brass 3.46"
(87.9mm)		 1.31"
(33.30mm)		 1-3/16" Brass Coupler & Brass Plug:
Max. Working: 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
N4M4 Plug/Male 1/2" 1/2" - 14 Male NPTF Steel 3.65"
(92.7mm)		 1.31"
(33.30mm)		 1-3/16" Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
N4M4-B Plug/Male 1/2" 1/2" - 14 Male NPTF Brass 3.65"
(92.7mm)		 1.31"
(33.30mm)		 1-3/16" Brass Coupler & Brass Plug:
Max. Working: 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
N4M6 Plug/Male 1/2" 3/4" - 14 Male NPTF Steel 3.65"
(92.7mm)		 1.31"
(33.30mm)		 1-3/16" Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
N4M6-B Plug/Male 1/2" 3/4" - 14 Male NPTF Brass 3.65"
(92.7mm)		 1.31"
(33.30mm)		 1-3/16" Brass Coupler & Brass Plug:
Max. Working: 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
N4M6-S Plug/Male 1/2" 3/4" - 14 Male NPTF 303 Stainless 3.65"
(92.7mm)		 1.31"
(33.30mm)		 1-3/16" 303 S.S. Coupler & 303 S.S. Plug:
Max. Working: 500 PSI (35 Bar)
Burst: 12,600 PSI (865 Bar)
N4M6-SS Plug/Male 1/2" 3/4" - 14 Male NPTF 316 Stainless 3.65"
(92.7mm)		 1.31"
(33.30mm)		 1-3/16" 303 S.S. Coupler & 303 S.S. Plug:
Max. Working: 500 PSI (35 Bar)
Burst: 12,600 PSI (865 Bar)
N4M8 Plug/Male 1/2" 1" - 11-1/2 Male NPTF Steel 3.89"
(98.8mm)		 1.51"
(38.40mm)		 1-3/8" Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
N4M8-B Plug/Male 1/2" 1" - 11-1/2 Male NPTF Brass 3.89"
(98.8mm)		 1.51"
(38.40mm)		 1-3/8" Brass Coupler & Brass Plug:
Max. Working: 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
N4M8-SS Plug/Male 1/2" 1" - 11-1/2 Male NPTF 316 Stainless 3.89"
(98.8mm)		 1.51"
(38.40mm)		 1-3/8" 303 S.S. Coupler & 303 S.S. Plug:
Max. Working: 500 PSI (35 Bar)
Burst: 12,600 PSI (865 Bar)
Dix-Lock N-Series | Coupler (Male Threads)
Part
Number		 Coupling
Type		 Body
Size		 Threads Material Length Max.
OD		 Hex Pressure Ratings for:
3NBM4 Socket/Female 3/8" 1/2" - 14 Male BSPT Steel 1.73"
(43.80mm)		 1.1"
(27.9mm)		 1" Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 7,000 PSI (480 bar)
3NM4 Socket/Female 3/8" 1/2" - 14 Male NPTF Steel 1.80"
(45.70mm)		 1.1"
(27.9mm)		 1" Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 7,000 PSI (480 bar)
4NBM3 Socket/Female 1/2" 3/8" - 19 Male BSPT Steel 1.66"
(42.20mm)		 1.5"
(38.1mm)		 1-3/8" -
4NBM4 Socket/Female 1/2" 1/2" - 14 Male BSPT Steel 1.75"
(44.5mm)		 1.5"
(38.1mm)		 1-3/8" Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
4NBM4-B Socket/Female 1/2" 1/2" - 14 Male BSPT Brass 1.75"
(44.5mm)		 1.5"
(38.1mm)		 1-3/8" Brass Coupler & Brass Plug:
Max. Working: 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
4NBM6 Socket/Female 1/2" 3/4" - 14 Male BSPT Steel 1.85"
(47mm)		 1.5"
(38.1mm)		 1-3/8" Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
4NBM6-B Socket/Female 1/2" 3/4" - 14 Male BSPT Brass 1.85"
(47mm)		 1.5"
(38.1mm)		 1-3/8" Brass Coupler & Brass Plug:
Max. Working: 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
4NBM8 Socket/Female 1/2" 1" - 11 Male BSPT Steel 1.95"
(49.5mm)		 1.5"
(38.1mm)		 1-1/2" Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
4NBM8-B Socket/Female 1/2" 1" - 11 Male BSPT Brass 1.95"
(49.5mm)		 1.5"
(38.1mm)		 1-1/2" Brass Coupler & Brass Plug:
Max. Working: 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
4NM3 Socket/Female 1/2" 3/8" - 18 Male NPTF Steel 1.66"
(42.2mm)		 1.5"
(38.1mm)		 1-3/8" Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
4NM3-B Socket/Female 1/2" 3/8" - 18 Male NPTF Brass 1.66"
(42.2mm)		 1.5"
(38.1mm)		 1-3/8" Brass Coupler & Brass Plug:
Max. Working: 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
4NM4 Socket/Female 1/2" 1/2" - 14 Male NPTF Steel 1.85"
(47mm)		 1.5"
(38.1mm)		 1-3/8" Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
4NM4-B Socket/Female 1/2" 1/2" - 14 Male NPTF Brass 1.85"
(47mm)		 1.5"
(38.1mm)		 1-3/8" Brass Coupler & Brass Plug:
Max. Working: 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
4NM6 Socket/Female 1/2" 3/4" - 14 Male NPTF Steel 1.85"
(47mm)		 1.5"
(38.1mm)		 1-3/8" Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
4NM6-B Socket/Female 1/2" 3/4" - 14 Male NPTF Brass 1.85"
(47mm)		 1.5"
(38.1mm)		 1-3/8" Brass Coupler & Brass Plug:
Max. Working: 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
4NM6-S Socket/Female 1/2" 3/4" - 14 Male NPTF 303 Stainless 1.85"
(47mm)		 1.5"
(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)
4NM6-SS Socket/Female 1/2" 3/4" - 14 Male NPTF 316 Stainless 1.85"
(47mm)		 1.5"
(38.1mm)		 1-3/8" -
4NM8 Socket/Female 1/2" 1" - 11-1/2 Male NPTF Steel 1.95"
(49.5mm)		 1.5"
(38.1mm)		 1-1/2" Steel Coupler & Steel Plug:
Max. Working: 500 PSI (35 bar)
Burst: 11,000 PSI (755 bar)
4NM8-B Socket/Female 1/2" 1" - 11-1/2 Male NPTF Brass 1.95"
(49.5mm)		 1.5"
(38.1mm)		 1-1/2" Brass Coupler & Brass Plug:
Max. Working: 300 PSI (20 Bar)
Burst: 8,200 PSI (865 Bar)
4NM8-SS Socket/Female 1/2" 1" - 11-1/2 Male NPTF 316 Stainless 1.95"
(49.5mm)		 1.5"
(38.1mm)		 1-1/2" -

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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