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 5905-01-181-7736
NSN 6645-01-068-6524
NSN 6645-01-223-7274
NSN 5975-00-875-4082
NSN 5925-01-653-8366
NSN 5910-01-633-9963
NSN 5999-01-113-6872
NSN 6150-00-778-3289
NSN 6650-01-392-0588
NSN 5945-00-580-0873
NSN 6145-01-416-5808
NSN 6150-01-261-0706