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 6220-01-473-8472
NSN 4140-01-463-9023
NSN 5920-00-681-5454
NSN 4140-00-294-3654
NSN 2925-00-447-0788
NSN 6110-01-183-1580
NSN 6685-01-548-4266
NSN 5905-00-976-1098
NSN 2925-01-068-3844
NSN 5960-01-474-4843
NSN 6645-00-701-4606
NSN 5920-01-318-3025