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 5895-01-329-2209
NSN 5975-00-512-1099
NSN 7035-00-731-8729
NSN 2925-01-446-6976
NSN 5935-01-278-4979
NSN 6610-01-416-2738
NSN 2925-01-333-6346
NSN 5985-01-410-8352
NSN 6135-01-485-9082
NSN 6645-01-378-5260
NSN 6620-01-064-0366
NSN 6685-00-003-6291