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 5930-01-439-5998
NSN 6145-00-947-5883
NSN 7035-01-365-4087
NSN 5930-00-659-2582
NSN 6610-00-617-3086
NSN 6685-00-157-3289
NSN 5998-01-477-6106
NSN 2925-00-486-8640
NSN 5905-01-254-4349
NSN 6110-01-481-9550
NSN 5996-01-415-3291
NSN 5945-00-708-8609