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 5935-01-423-6024
NSN 5925-01-088-6863
NSN 5920-01-010-3293
NSN 6220-01-609-3375
NSN 7035-01-514-0599
NSN 5998-00-864-4881
NSN 2925-01-384-4139
NSN 6685-00-436-7635
NSN 5975-01-238-4687
NSN 6685-01-182-0948
NSN 5999-00-795-8032
NSN 5835-01-606-8768