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 6620-01-608-6474
NSN 6685-00-961-1990
NSN 5945-00-610-7999
NSN 5985-00-280-3490
NSN 6645-01-435-6373
NSN 5965-00-706-7005
NSN 5855-01-131-9336
NSN 5920-01-019-8880
NSN 6645-01-152-5207
NSN 6650-00-279-5741
NSN 5935-00-869-6379
NSN 5965-00-106-3195