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 7035-01-026-1171
NSN 6110-01-352-7200
NSN 6135-01-068-0119
NSN 6320-00-213-0477
NSN 6320-01-006-6138
NSN 6105-01-065-7023
NSN 5835-00-170-5238
NSN 5985-00-010-7754
NSN 5835-01-381-9565
NSN 7035-01-627-6614
NSN 6320-01-486-8004
NSN 5996-01-289-9690