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 6145-01-089-7663
NSN 6110-01-625-6251
NSN 5999-00-925-2502
NSN 5990-00-116-6590
NSN 5905-00-983-4820
NSN 6220-01-157-2930
NSN 5930-00-478-7166
NSN 2925-01-351-9748
NSN 5996-01-034-6321
NSN 6220-01-212-3254
NSN 6685-01-062-1153
NSN 5975-00-722-1954