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Black steel pipe nipple, threaded both ends, 4 inch length

Value Brand

Value Brand 1/4" x 4" Black Pipe Nipple Sch 40

SKU CH-3FGG-RMTDA

A 4-inch Schedule 40 black steel pipe nipple with male NPT threads on both ends, rated for 300 psi at 150°F and 150 psi steam, meeting ASTM A-53 Type E and ASTM A-733 Grade B standards

  • Threaded both ends for quick installation
  • Schedule 40 wall handles 300 psi water pressure
  • Black steel resists corrosion in supply lines
  • Electric-resistance weld meets ASTM A-53 and A-733
  • 1/4 inch nominal suits tight plumbing runs

1/4" Black Steel Pipe Nipple

This 1/4 inch nominal pipe nipple is made from black steel and measures 4 inches in overall length. It features male NPT threads on both ends and conforms to Schedule 40 wall thickness of 5/64 inch. The welded construction uses electric resistance weld and meets ASTM A-53 Type E and ASTM A-733 Grade B standards.

Plumbing Installers Needing Schedule 40 Fittings

This nipple suits installers who need a standard Schedule 40 black steel connector for water, gas, or oil lines rated to 300 psi at 150 degrees Fahrenheit. It is not for systems requiring stainless steel, brass, or plastic piping materials. Builders needing a different nominal size or longer overall length should select another fitting.

Threaded Both Ends for Direct Assembly

The male NPT threads on both ends allow direct connection into female threaded fittings such as couplings, elbows, or valves without additional adapters. The black steel finish provides a standard surface for thread sealant or tape application. No gaskets, sealant, or special tools are included in the package.

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

What size female NPT fittings do I need to connect this 1/4 inch male nipple?

This nipple has 1/4 inch MNPT threads on both ends, so you need female NPT fittings in the same 1/4 inch nominal size to make a seal.

Will the 300 psi pressure rating hold if I thread this Schedule 40 nipple into older galvanized fittings?

The nipple is rated for 300 psi at 150 °F and meets ASTM A-53 Type E and A-733 Grade B, so it will hold that pressure provided the mating galvanized threads are clean, undamaged and also rated for Schedule 40 service.

How can I verify the wall thickness is correct after I install the 4 inch nipple?

The specified wall thickness is 5/64 inch and the outside diameter is 17/32 inch; you can confirm both with a caliper or pipe gauge on the exposed ends once the nipple is in place.

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