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 7035-01-534-7074
NSN 5996-01-324-2449
NSN 6110-01-013-9313
NSN 6610-00-548-3452
NSN 6135-00-112-8637
NSN 6240-01-428-9410
NSN 2925-00-070-4576
NSN 5935-00-737-4925
NSN 6685-00-243-8071
NSN 5920-01-577-4214
NSN 6220-01-215-0907
NSN 5960-00-190-5817