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 5920-01-604-8861
NSN 2925-01-244-3016
NSN 6610-01-227-7221
NSN 5999-01-365-0125
NSN 6610-00-211-9095
NSN 5960-01-496-3712
NSN 6685-00-542-1902
NSN 6220-01-580-1499
NSN 6145-01-521-3924
NSN 5985-01-033-5054
NSN 4140-00-940-9595
NSN 5950-01-234-6441