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 6685-00-116-8073
NSN 6145-01-214-8037
NSN 5910-00-127-2543
NSN 5930-01-535-4357
NSN 5930-01-182-4100
NSN 5999-00-126-4550
NSN 6320-01-364-1840
NSN 5975-01-081-9493
NSN 6145-00-348-4320
NSN 5920-01-296-2878
NSN 6645-00-764-0412
NSN 5975-01-424-4899