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 5905-00-166-7235
NSN 5950-01-218-2986
NSN 5996-00-406-1956
NSN 6220-00-988-5311
NSN 5999-00-351-9662
NSN 5999-01-506-9993
NSN 6105-00-225-5387
NSN 5920-01-027-0660
NSN 5999-01-126-0927
NSN 6645-01-147-5579
NSN 6110-01-600-9905
NSN 6685-01-367-2927