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 5915-01-519-2234
NSN 5990-01-215-0590
NSN 5920-01-215-4741
NSN 5915-01-437-2962
NSN 5990-01-050-7535
NSN 6145-00-011-2390
NSN 6105-01-502-5640
NSN 6240-01-149-8590
NSN 5925-01-661-3749
NSN 5915-01-608-5264
NSN 7035-01-215-2449
NSN 5985-01-481-2803