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 7035-01-136-5235
NSN 6610-01-531-1079
NSN 5985-01-044-0448
NSN 6645-01-348-4804
NSN 5925-00-262-5651
NSN 6610-00-891-6370
NSN 6645-01-659-1583
NSN 6130-00-500-8477
NSN 5975-01-467-3005
NSN 6685-01-604-4054
NSN 5990-00-820-5926
NSN 6135-00-269-5843