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Short black steel pipe nipple with threaded ends

Value Brand

Value Brand Pipe Nipple Steel 3/8 NPT 4 in Schedule 40

SKU CH-32D6-M5RHH

Steel pipe nipple with 3/8 NPT threads for air, gases, non-potable water and oils up to 300 psi at 150°F

  • Steel construction resists corrosion for long service life
  • Schedule 40 wall handles 300 psi at 150 °F
  • 3/8 inch NPT threads fit standard pipe fittings
  • Four-inch length suits tight plumbing runs
  • Electric-resistance weld ensures leak-free joints

Steel Pipe Nipple 3/8 NPT 4 in

This steel pipe nipple connects threaded fittings in air, gas, non-potable water and oil lines. The 3/8 inch nominal size and four inch overall length suit compact plumbing runs. Male NPT threads on both ends allow direct assembly without extra adapters. It is built for Schedule 40 pressure ratings in industrial and commercial installations.

Schedule 40 Pressure Limits

The fitting handles 300 psi at 150 degrees F for standard fluid service. Steam duty is limited to 150 psi at 350 degrees F. Electric resistance welded construction meets the Schedule 40 wall thickness for these pressures. Exceeding either pressure or temperature rating risks joint failure and leaks.

Four Inch Length and 3/8 Bore

The 43/64 inch outside diameter and welded seam provide the structural headroom for rated service. The short four inch span fits tight mechanical rooms and equipment hookups. Installers needing longer reach or larger flow capacity must select a different nipple length or pipe size.

How it compares

Measured against everything we stock in Hose Fittings, Adapters & Clamps, at today’s prices. Recalculated every night.

Price $1.99
Cheaper than about 94% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameZoro Select

Questions about this item

Should I choose the 4 in length or a different size for my Schedule 40 system?

This nipple is 4 in overall length with 3/8 in nominal pipe size. Select the length that matches your required center-to-center spacing between fittings.

What does the 300 psi rating mean when I install this in my air line?

It handles up to 300 psi at 150 °F for air, gases, oils and non-potable water. Steam service is limited to 150 psi at 350 °F.

How does the NPT thread affect what I can connect to it?

Both ends are male NPT threads. They seal with standard NPT female fittings such as couplings, elbows or valves in Schedule 40 steel.

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