Pipe Used: ASTM A53 (Welded Pipe). Size: 1/4" x Close (7/8") S/40 NPT Galvanized Pipe Nipple. NPT threads may be referred to as MPT ('Male Pipe Thread'), MNPT, or NPT(M) for male (external) threads, and FPT ('Female Pipe Thread'), FNPT, or NPT(F) for female (internal) threads.
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