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 5975-01-628-9434
NSN 5930-01-579-7811
NSN 5835-01-281-7281
NSN 5925-01-316-9458
NSN 5985-00-233-7284
NSN 5999-01-213-4105
NSN 5965-01-462-2291
NSN 5985-01-317-3143
NSN 6220-01-441-8397
NSN 5905-01-426-6633
NSN 2925-01-300-6602
NSN 6610-00-207-4207