Carbon Steel 4" Flange with National Pipe Tapered (NPT) Swivel / Rigid_Rigid Female Residential use on private fire

Residential use on private fire hydrants

A double swivel adapter will not swivel or rotate once both ends are tightened to the male connections

Thermoplastic 2 inch NPSH threaded cap with chain

rugged aluminum universal spanner wrench for 1" - 3" rocker or pin lug couplings and adapters

Carbon Steel 4" Flange with National Pipe Tapered (NPT) Swivel / Rigid_Rigid Female Residential use on private fireNational Pipe Tapered (NPT) Carbon Steel Flange. ASA Forged Flanges have raised shoulder with no raised face. National Pipe Tapered is common in plumbing and some industrial uses. Sometimes referred to as pipe thread because PVC pipe and schedule 40 pipe are typically threaded in NPT. ANSI was originally formed in 1918, when five engineering societies and three government agencies founded the American Engineering Standards Committee (AESC). In 1928,