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 5920-01-167-9026
NSN 2925-01-106-3552
NSN 5975-01-415-0918
NSN 5895-00-278-8092
NSN 5855-01-474-3325
NSN 5905-00-052-9616
NSN 6130-00-240-2438
NSN 6685-01-110-1783
NSN 6685-01-462-7965
NSN 5905-00-353-1659
NSN 5930-01-461-5127
NSN 5965-01-351-6977