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 5855-00-763-2155
NSN 6220-01-611-6840
NSN 6150-00-359-2019
NSN 5910-01-015-3536
NSN 5999-00-691-8547
NSN 5910-00-411-6171
NSN 6150-00-143-5396
NSN 5835-00-170-5238
NSN 5835-01-608-4285
NSN 4140-00-468-5342
NSN 6145-00-113-3911
NSN 5975-01-525-9427