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 5905-01-453-4607
NSN 5935-00-974-1816
NSN 5905-01-371-6253
NSN 5990-00-754-2842
NSN 6685-00-563-7475
NSN 5960-01-023-8037
NSN 6220-01-092-8959
NSN 5835-01-160-7282
NSN 6620-01-034-1697
NSN 5910-01-197-7358
NSN 5925-00-932-3027
NSN 5985-00-225-9993