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 6135-00-128-1633
NSN 6220-01-600-9687
NSN 2925-01-496-4699
NSN 5945-00-339-2755
NSN 6135-01-340-2599
NSN 6130-01-154-1119
NSN 6135-01-142-6456
NSN 5965-00-275-0491
NSN 5950-01-568-7016
NSN 5905-01-006-7721
NSN 5950-01-071-0313
NSN 7035-01-265-0216