A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 6220-01-396-5638
NSN 6620-00-858-7317
NSN 6145-01-307-1848
NSN 5975-01-414-8873
NSN 5960-01-450-8539
NSN 5895-01-502-3615
NSN 5996-01-260-1502
NSN 5915-01-146-6202
NSN 5975-01-354-3210
NSN 6240-01-396-9541
NSN 6685-00-963-1115
NSN 5910-01-525-9437