FMSI > Brass Hardware > FMSI Edelmann Fittings Brass > Pipe Thread Fittings > Advanced Search Advanced Search in Pipe Thread Fittings Unit of Measure Imperial Metric Both Specifications Thread Size No Preference 1/8-27 1/4-18 1/2-14 3/8-18 3/4-14 Thread Type Female National Pipe Thread (FNPT) Male National Pipe Thread (MNPT) Hex Size (in) No Preference 1/4 3/16 3/8 5/16 Length (in) No Preference 1 1-1/2 1-1/8 2 2-1/2 3 3/4 3-1/2 7/8 Male Pipe Thread Size No Preference 1/2-14 1/4-18 1/8-27 3/4-14 3/8-18 Female Pipe Thread Size No Preference 1/2-14 1/4-18 1/4-18 Female National Pipe Thread (FNPT) 1/8-27 3/4-14 3/8-18 Clear Cancel Advanced Search