Regulator Inlet Nuts & Nipples

Western offers nuts and nipples in a variety of materials and styles to fit a full range of gas service requirements.  Five different types of nut/nipple combinations are available:

  • Brass nut and nipple.
  • Stainless steel nut and nipple.
  • Nut and nipple with check valve.
  • Nut and nipple recessed for tubing.
  • Hand tight nut and nipple.

Please note that all types may not be available for certain gas services.

Nipples with check valves:
Nipples with integral check valves are designed to provide additional safety in Manifold Systems and other equipment.

  • Check valves nipples can be built into pigtails, tee connections and manifold blocks to resist back flow of gases from lines, equipment and cylinders.
  • Check valves are factory installed and 100% tested.
  • Check valves are for reverse flows only - they care not to be used as Flashback Arrestors.

Hand tight nuts and nipples:
Western Hand-Tight Nuts provide for easy installation and are available in brass or with plastic grips.

  • Lightweight plastic grips have labels which are colour-coded for gas service.
  • All brass nuts are machined to CGA specifications and designed with wrench flats.
  • Soft tip or O-ring type nipples always should be used with handtight nuts.
  • CGA fittings rated over 3000 psig do not have soft tips and final gas-tight seating requires wrench action.

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Description
 
CGA-170 For Non-Corrosive Gases in small cylinders
$10.11 170-2 Nut Brass, .5625"-18 UNF-2B-RH Female
$11.63 170-3SF Nipple Brass, 1/8" NPT, 1-1/2" Long
$4.80 170-4 Washer Nylon
$21.93 170-5 Adapter Brass, 1/8" NPT, 1-1/32" Long


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CGA-180 For Non-Corrosive Gases in small cylinders
$10.01 180-2 Nut Brass, .625"-18 UNF-2B-RH Female
$10.68 180-3 Nipple Brass, 1/8" NPT, 1-3/4" Long
$4.80 180-4 Washer Teflon
$22.70 180-5 Adapter Brass, CGA180 to 1/4" NPT Male


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CGA-200 For "MC" Tank Acetylene
$2.75 305-2 Nut Brass, "MC", .628"-20 NGO, R.H. Female
$3.50 305-3 Nipple Brass, 7/16"-20, 1-1/4" Long
$4.00 305-3A Nipple Brass, 1/8 NPT, 1-1/4" Long


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CGA-280 For Medical Breathing Mixtures
$5.42 284 Nut Brass, .750"-14 NGO, R.H. Female
$4.46 283 Nipple Brass, 1/4" NPT, 2" Long


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CGA-296 For Industrial Mixtures of Oxygen
$4.27 29-2 Nut Brass, .803"-14 UNS-2A, R.H. Female
$5.05 29-3 Nipple Brass, 1/4" NPT, 3" Long
$27.72 6296 Nut Brass, Hand Tight, R.H. Male
$9.93 6296-3 Nipple Hand tight, 1/4" NPT, 3" Long
$52.63 6296-0 O-ring Replacement, Box/25


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Description
 
CGA-300 For Commerical Acetylene
$3.50 16-2 Nut Brass, .830"-14 NGO, R.H. Female
$4.35 16-3 Nipple Brass, 1/4" NPT, 1-15/16" Long
$4.90 16-8 Nipple Brass, 1/4" NPT, 2-1/2" Long
$26.20 16-8CV Nipple Brass, 1/4" NPT, 2-1/2" Long w/ Check Valve
$23.67 616-2 Nut Brass, Hand Tight, R.H. Female
$15.42 616-2P Nut Hand Tight, Plastic Grip, R.H. Female
$14.38 616-3 Nipple Hand Tight, 1/4" NPT, 2-1/2" Long
$6.50 616-PT Tip Soft tip, replacement


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Description
 
CGA-320 For Carbon Dioxide
$2.80 CO-2 Nut Brass, .830"-14 NGO, R.H. Female
$4.25 CO-3 Nipple Brass, 1/4" NPT, 2" Long
$4.70 CO-4 Nipple Brass, 1/4" NPT, 2-1/2" Long
$25.30 CO-4CV Nipple Brass, 1/4" NPT, 2-1/2" Long w/ Check Valve
$8.42 CO-7 Nipple Brass, 1/2"-27, 2-1/2" Long
$10.00 CO-8 Nipple Brass, 1/4" NPT, L.H., 2" Long
$123.13 CO-3M2 Nipple Recessed for 5/16" O.D. Tube, Box/25
$21.80 6-CO-2 Nut Brass, Hand Tight, R.H. Female
$14.87 6-CO-2P Nut Plastic Grip, Hand Tight, R.H. Female
$5.38 6-CO-4 Nipple Hand Tight, 1/4" NPT, 2-1/2" Long
$5.87 6-CO-4M1 Nipple Hand Tight, Recessed for 1/4" Tube
$23.05 SS-CO-2 Nut Stainless Steel, .830"-14 NGO, R.H. Female
$20.88 SS-CO-3 Nipple Stainless Steel, 1/4" NPT, 2" Long
$1.42 CO-1TW Washer Teflon, Snap In, Each
$0.24 CO-5 Washer Fiber, Flat, Each
$0.69 CO-6 Washer Teflon, Flat, Each
$0.72 CO-6N Washer Nylon, Snap In, Each


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CGA-326 For Nitrous Oxide
$3.60 13-2 Nut Brass, .830"-14 NGO, R.H. Female
$5.20 13-3 Nipple Brass, 1/4" NPT, 2-1/2" Long
$24.23 13-3CV Nipple Brass, 1/4" NPT, 2-1/2" Long, w/ Check Valve
$21.78 613-2 Nut Brass, Hand Tight, R.H. Female
$14.88 613-2P Nut Plastic Grip, Hand Tight, R.H. Female
$12.30 613-5 Nipple Hand Tight, 1/4" NPT, 2-1/2" Long
$6.60 613-KPT Tip Soft Tip, Replacement
$25.50 SS-13-2 Nut Stainless Steel, .830"-14 NGO, R.H. Female
$22.82 SS-13-3 Nipple Stainless Steel, 1/4" NPT, 2-1/2" Long


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CGA-330 For Non-Corrosive Gases (Brass) or Corrosive Gases (Stainless Steel)
$5.82 334 Nut Brass, .830"-14 NGO, L.H. Female
$4.50 333 Nipple Brass, 1/4" NPT, L.H. 2" Long
$5.25 333-A Nipple Brass, 1/4" NPT, L.H. 2-1/2" Long
$21.73 SS-334 Nut Stainless Steel, .830"-14 NGO, L.H. Female
$20.55 SS-333 Nipple Stainless Steel, 1/4" NPT, 2" Long
$0.60 335 Washer Teflon, Each
$0.72 CO-6N Washer Nylon, Snap In, Each


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Description
 
CGA-346 For Air
$3.35 14-2 Nut Brass, .830"-14 NGO, R.H. Female
$4.00 14-3 Nipple Brass, 1/4" NPT, 2-1/2" Long
$21.85 14-3CV Nipple Brass, 1/4" NPT, 2-1/2" Long w/ Check Valve
$21.78 614-2 Nut Brass, Hand Tight, R.H. Female
$14.12 614-2P Nut Plastic Grip, Hand Tight, R.H. Female
$8.50 614-5 Nipple Hand Tight, 1/4" NPT, 2-1/2" Long
$7.40 614-KPT Tip Soft Tip, Replacement
$19.07 SS-14-2 Nut Stainless Steel, .830"-14 NGO, R.H. Female
$21.72 SS-14-3 Nipple Stainless Steel, 1/4" NPT, 2-1/2" Long


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Description
 
CGA-347 For Air / High Pressure
$9.00 347-2 Nut Brass, .830"-14 NGO, R.H. Female
$9.00 347-3 Nipple Brass, 1/4" NPT, 3" Long
$12.88 6347-2 Nut Hand Tight, R.H. Female
$19.15 6347-3 Nipple Hand Tight, 1/4" NPT, 3" Long
$22.38 SS-347-2 Nut Stainless Steel, .830"-14 NGO, R.H. Female
$24.58 SS-347-3 Nipple Stainless Steel, 1/4" NPT, 3" Long
$36.15 SS-6347-2 Nut Stainless Steel, Hand Tight, R.H. Female
$42.47 SS-6347-3 Nipple Stainless Steel, Hand Tight, 1/4" NPT, 3" Long


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CGA-350 For Hydrogen & Natural Gas
$3.75 82 Nut Brass, .830"-14 NGO, L.H. Female
$4.20 83 Nipple Brass, 1/4" NPT, 2-1/2" Long
$24.23 83-CV Nipple Brass, 1/4" NPT, 2-1/2" Long w/ Check Valve
$4.05 83-M1 Nipple Recessed for 1/4" O.D. Tube
$97.88 83-M2 Nipple Recessed for 5/16" O.D. Tube, Box/25
$6.06 87 Nipple Brass, 1/4" NPT, 3" Long
$18.67 682 Nut Brass, Hand Tight, L.H. Female
$14.83 682P Nut Plastic Grip, Hand Tight, L.H. Female
$11.88 683 Nipple Hand Tight, 1/4" NPT, 2-1/2" Long
$5.20 683-PT Tip Soft Tip, Replacement
$19.40 SS-82 Nut Stainless Steel, .830"-14 NGO L.H. Female
$21.32 SS-83 Nipple Stainless Steel, 1/4" NPT, 2-1/2" Long
$21.32 SS-83-M1 Nipple Stainless Steel, Recessed for 1/4" O.D. Tube


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CGA-500 For Medical Mixtures
$6.30 500-2 Nut Brass, .830"-14 NGO, R.H. Female
$2.80 15-8 Nipple Brass, 1/4" NPT, 2-1/2" Long
$20.42 15-8CV Nipple Brass, 1/4" NPT, 2-1/2" Long w/ Check Valve
$3.20 15-3 Nipple Brass, 1/4" NPT, 3" Long
$5.00 15-4 Nipple Brass, 1/4" NPT, 3-1/2" Long
$10.98 15-11 Nipple Brass, 1/4" NPT, 4-1/2" Long
$5.90 15-9 Nipple Brass, 1/2"-27 NPT, 3" Long
$4.15 15-8M1 Nipple Recessed for 1/4" O.D. Tube
$4.15 15-8M2 Nipple Recessed for 5/16" O.D. Tube
$9.00 15-8M3 Nipple Recessed for 3/8" O.D. Tube


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CGA-510 For P.O.L. Acetylene
$2.85 15-2 Nut Brass, .880"-14 NGO, L.H. Female
$3.20 15-3 Nipple Brass, 1/4" NPT, 3" Long
$5.00 15-4 Nipple Brass, 1/4" NPT, 3-1/2" Long
$10.22 15-5 Nipple Brass, 1/2"-27, 4" Long
$2.80 15-8 Nipple Brass, 1/4" NPT, 2-1/2" Long
$20.42 15-8CV Nipple Brass, 1/4" NPT, 2-1/2" Long w/ Check Valve
$5.90 15-9 Nipple Brass, 1/2"-27 NPT, 3" Long
$10.98 15-11 Nipple Brass, 1/4" NPT, 4-1/2" Long
$4.15 15-8M1 Nipple Recessed for 1/4" O.D. Tube
$4.15 15-8M2 Nipple Recessed for 5/16" O.D. Tube
$9.00 15-8M3 Nipple Recessed for 3/8" O.D. Tube


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CGA-520 For "B" Tank Acetylene
$3.25 300-2 Nut Brass, .899"-18 NGO, R.H. Female
$4.40 300-3 Nipple Brass, 1/4" NPT, 1-3/4" Long


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CGA-540 For Oxygen
$2.65 62 Nut Brass, .908"-14 NGO, R.H. Female
$23.20 63-CV Nipple Brass, 1/4" NPT, 2" Long w/ Check Valve
$3.05 63 Nipple Brass, 1/4" NPT, 2-1/16" Long
$2.70 66 Nipple Brass, 1/4" NPT, 2-1/2" Long
$3.55 69 Nipple Brass, 1/4" NPT, 3" Long
$4.60 67 Nipple Brass, 1/2"-27, 2-1/2" Long
$4.90 63-M1 Nipple Recessed for 1/4" I.D. Tube
$3.20 63-M2 Nipple Recessed for 5/16" I.D. Tube
$4.90 662 Nut Brass, Hand Tight, R.H. Female
$10.97 662-P Nipple Plastic Grip, Hand Tight, R.H. Female
$10.60 663 Nipple Brass, 1/4" NPT, 2-1/2" Long
$5.35 663-KPT Tip Soft Tip, Replacement
$19.28 SS-62 Nut Stainless Steel, .908"-14 NGO, R.H. Female
$20.42 SS-63 Nipple Stainless Steel, 1/4" NPT, 2-1/2" Long


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CGA-555 For Butane, Propane (Liquid Withdrawal)
$3.60 72 Nut Brass, .908"-14 NGO, L.H. Female
$3.70 73 Nipple Brass, 1/4" NPT, 2-1/16" Long
$4.25 76 Nipple Brass, 1/4" NPT, 2-1/2" Long
$9.60 673 Nut Hand Tight, 1/4" NPT, 2-1/2" Long
$5.30 673-KPT Tip Soft Tip, Replacement


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CGA-577 For Oxygen, Pressure to 4000 psi
$8.75 577-2 Nut Brass, .965"-14 NGO, R.H. Female  
$12.52 577-4SF Nipple Brass w/ Filter, 1/4" NPT, 3" Long


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Description
 
CGA-580 For Argon, C25, Helium & Nitrogen
$3.10 92 Nut Brass, .960"-14 NGO, R.H. Male
$12.52 577-4SF Nipple Brass w/ Filter, 1/4" NPT, 3" Long
$3.20 15-3 Nipple Brass, 1/4" NPT, 3" Long
$5.00 15-4 Nipple Brass, 1/4" NPT, 3-1/2" Long
$10.22 15-5 Nipple Brass, 1/2"-27, 4" Long
$2.80 15-8 Nipple Brass, 1/4" NPT, 2-1/2" Long
$20.42 15-8CV Nipple Brass, 1/4" NPT, 2-1/2" Long w/ Check Valve
$5.90 15-9 Nipple Brass, 1/2"-27 NPT, 3" Long
$10.98 15-11 Nipple Brass, 1/4" NPT, 4-1/2" Long
$4.15 15-8M1 Nipple Recessed for 1/4" O.D. Tube
$4.15 15-8M2 Nipple Recessed for 5/16" O.D. Tube
$18.87 692 Nut Brass, Hand Tight, R.H. Male
$12.50 692P Nut Plastic Grip, Hand Tight, R.H. Male
$2.00 615-0 O-ring Replacement O-ring
$5.65 615-PT Tip Soft Tip, Replacement
$8.65 615-3 Nipple Hand Tight, 1/4" NPT, 3-1/2" Long w/O-ring
$8.80 615-3T Nipple Hand Tight, 1/4" NPT, 3" Long w/Soft Tip
$21.23 SS-92 Nut Stainless Steel, .960"-14 NGO R.H. Male
$23.85 SS-15-3 Nipple Stainless Steel, 1/4" NPT, 3" Long
$50.22 SS-15-3CV Nipple Stainless Steel, 1/4" NPT, 3" Long w/ Check Valve
$17.62 SS-15-8M1 Nipple Stainless Steel, Recessed for 1/4" O.D. Tube


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CGA-590 For Industrial Air
$4.10 93 Nut Brass, .960"-14 NGO, L.H. Male
$3.20 15-3 Nipple Brass, 1/4" NPT, 3" Long
$5.00 15-4 Nipple Brass, 1/4" NPT, 3-1/2" Long
$10.22 15-5 Nipple Brass, 1/2"-27, 4" Long
$2.80 15-8 Nipple Brass, 1/4" NPT, 2-1/2" Long
$20.42 15-8CV Nipple Brass, 1/4" NPT, 2-1/2" Long w/ Check Valve
$5.90 15-9 Nipple Brass, 1/2"-27 NPT, 3" Long
$10.98 15-11 Nipple Brass, 1/4" NPT, 4-1/2" Long
$4.15 15-8M1 Nipple Recessed for 1/4" O.D. Tube
$4.15 15-8M2 Nipple Recessed for 5/16" O.D. Tube
$9.00 15-8M3 Nipple Recessed for 3/8" O.D. Tube
$22.83 693 Nut Brass, Hand Tight, L.H. Male
$18.10 693P Nut Plastic Grip, Hand Tight, L.H. Male
$8.65 615-3 Nipple Hand Tight, 1/4" NPT, 3-1/2" Long w/O-ring
$8.80 615-3T Nipple Hand Tight, 1/4" NPT, 3" Long w/Soft Tip
$2.00 615-0 O-ring Replacement O-ring
$5.65 615-PT Tip Soft Tip, Replacement
$21.78 SS-93 Nut Stainless Steel .960"-14 NGO, R.H. Female
$23.83 SS-15-3 Nipple Stainless Steel .960"-14 NGO, R.H. Female
$50.22 SS-15-3CV Nipple Stainless Steel .960"-14 NGO, R.H. Female w/ Check Valve
$17.62 SS-15-8M1 Nipple Stainless Steel, Recessed for 1/4" O.D. Tube


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Description
 
CGA-660 For Industrial Air
$5.80 604 Nut Brass, 1.035"-14 NGO, R.H. Male
$9.80 603 Nipple Brass, 1/4" NPT, 1-3/4" Long
$10.25 603-A Nipple Brass, 1/4" NPT, 2-1/4" Long
$22.00 SS-603-A Nipple Stainless Steel, 1/4" NPT, 2-1/4" Long
$20.87 SS-604 Nut Stainless Steel, 1.035"-14 NGO, R.H Female
$2.54 665 Washer Teflon


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Description
 
CGA-670 For Mixtures
$47.63 SS-704 Nut Stainless Steel, 1.035"-14 NGO, L.H. Female  
$21.92 SS-703A Nipple Stainless Steel, 1/4" NPT, 2-1/2" Long


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CGA-677 For Mixtures
$20.60 SS-60-2 Nut Stainless Steel, 1.035"-14 NGO, L.H. Female
$23.83 SS-60-3 Nipple Stainless Steel, 1/4" NPT, 2-1/2" Long
$26.98 SS-60-4 Nipple Stainless Steel, 3/8" NPT, 3" Long
$19.60 SS-60M1 Nipple Recessed for 1/4" O.D. Tube


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CGA-680 For Inert Gases
$9.28 680-2 Nut Brass, 1.040"-14 NGO, R.H. Male
$12.63 680-3SF Nipple Brass w/ Filter, 1/4" NPT, 3" Long
$14.23 680-4SF Nipple Brass w/ Filter, 1/4" NPT, 3-1/2" Long
$12.63 6680 Nut Hand Tight (Use with 680-4SF Nipple)


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CGA-695 For Flammable Gases
$9.28 695-2 Nut Brass, 1.040"-14 NGO, L.H. Male
$12.63 680-3SF Nipple Brass w/ Filter, 1/4" NPT, 3" Long
$14.23 680-4SF Nipple Brass w/ Filter, 1/4" NPT, 3-1/2" Long


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CGA-701 For Oxygen
$11.20 701-2 Nut Brass, 1.108"-14 NGO, R.H. Female  
$12.75 701-4SF Nipple Brass w/ Filter, 1/4" NPT, 3" Long


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CGA-702 For Air
$11.57 702-2 Nut Brass, 1.108"-14 NGO, R.H. Female  
$12.63 680-3SF Nipple Brass w/ Filter, 1/4" NPT, 3" Long
$14.23 680-4SF Nipple Brass w/ Filter, 1/4" NPT, 3-1/2" Long


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CGA-705 For Air
$46.67 702-2 Nut Stainless Steel, 1.125"-14 UNS-2A, R.H. Female  
$23.98 SS-705-3 Nipple Brass w/ Filter, 1/4" NPT, 3" Long




On orders over $200.00.
CONUS, Standard Ground Shipping

Prices subject to change
Some products not kept in stock
Last update 19 August 2009