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 5985-01-639-8150
NSN 6610-01-307-0911
NSN 5925-00-275-7599
NSN 6220-00-463-1081
NSN 5895-01-245-4776
NSN 5855-01-645-8185
NSN 5985-00-837-6338
NSN 5975-01-223-8351
NSN 6685-01-344-5349
NSN 6105-01-118-8537
NSN 6610-00-870-1161
NSN 5930-00-517-0415