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 5835-00-221-6628
NSN 5855-00-327-2112
NSN 5999-00-410-4219
NSN 5925-01-070-1120
NSN 5965-01-065-5544
NSN 5910-01-512-8201
NSN 6145-01-152-4812
NSN 6610-00-186-9180
NSN 5965-01-498-8113
NSN 5990-01-212-2037
NSN 6240-00-801-8002
NSN 6220-01-467-9608