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 2925-01-491-3270
NSN 6135-01-045-1504
NSN 6685-01-473-3609
NSN 6610-00-952-8832
NSN 5905-01-267-0225
NSN 5920-01-400-2558
NSN 6320-01-285-1922
NSN 5985-01-598-9087
NSN 5975-00-838-4922
NSN 5910-00-038-6902
NSN 5895-00-921-4012
NSN 5905-01-120-9890