2-1/2" x 3-1/2" Black Pipe Nipple Black Fittings (Domestic) accurate threads are machined that

accurate threads are machined that comply with the precise standards developed by the Amerian Society of Mechanical Engineers (ASME) and published as an American National Standard

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Approved under 3-88 for 5 psig (1/2" €“ 2") €“ Threaded

The final casting produced by this detailed attention to quality is a close-grained

Ratchet design ensures crimps meet ASTM F-2098 Standard Specification

2-1/2" x 3-1/2" Black Pipe Nipple Black Fittings (Domestic) accurate threads are machined thatmaterial: Black Steel connection: Threaded Thread Type: Male Features: Meets or exceeds all applicable ASTM and ANSI standards Made in The U. S. A.