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 5985-00-933-3217
NSN 5975-01-076-3656
NSN 5945-01-331-6264
NSN 2925-00-234-7918
NSN 5925-01-441-9512
NSN 5930-01-441-8159
NSN 6110-01-429-9208
NSN 6135-01-039-2882
NSN 5998-00-354-2465
NSN 6685-01-417-8517
NSN 5915-01-528-9519
NSN 6145-01-502-7553