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 6135-01-439-8669
NSN 5925-01-467-9181
NSN 5965-01-116-1886
NSN 5905-01-462-1832
NSN 6145-01-428-6677
NSN 5920-00-828-2824
NSN 5965-01-132-4018
NSN 5905-00-729-9943
NSN 6645-01-649-8227
NSN 5910-00-118-6240
NSN 6610-01-074-4047
NSN 5960-01-485-2467