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 4140-00-113-8215
NSN 5975-01-275-2767
NSN 6105-00-478-1820
NSN 6220-00-949-7733
NSN 5905-01-441-2072
NSN 5905-00-228-0738
NSN 6610-01-160-8815
NSN 5990-01-472-2447
NSN 5935-00-068-5339
NSN 6645-01-316-7456
NSN 6620-01-417-8110
NSN 5920-01-230-0736