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 5960-01-437-5318
NSN 5975-01-094-2362
NSN 6105-01-384-3687
NSN 5975-01-473-0451
NSN 6145-01-196-0496
NSN 6130-00-782-6983
NSN 6150-00-170-4515
NSN 5960-01-433-7565
NSN 6130-01-319-8209
NSN 6650-00-862-2142
NSN 6610-01-099-9710
NSN 5895-01-246-4250