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 6135-01-335-9184
NSN 6220-00-771-9109
NSN 5895-01-322-8395
NSN 6145-00-225-8709
NSN 6220-00-967-0062
NSN 5855-01-340-6541
NSN 7035-01-607-5297
NSN 6320-01-495-4170
NSN 6645-00-337-8276
NSN 6320-01-624-0193
NSN 5998-00-773-6170
NSN 6105-01-168-1610