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 5855-01-211-2437
NSN 6685-00-332-2655
NSN 5895-00-661-1773
NSN 4140-01-532-5454
NSN 5855-01-464-3152
NSN 5895-01-163-9248
NSN 6645-01-100-3296
NSN 7035-01-416-5910
NSN 5975-01-651-1595
NSN 6650-01-094-6876
NSN 5965-01-378-1393
NSN 7035-00-870-0290