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 5965-00-884-2344
NSN 6105-01-222-5262
NSN 6135-01-281-4758
NSN 5905-00-449-6954
NSN 2925-00-753-8598
NSN 6135-01-529-8523
NSN 4140-01-361-8883
NSN 6220-00-211-6276
NSN 6145-01-444-4509
NSN 5950-00-115-8484
NSN 6240-01-433-9410
NSN 6110-00-115-5873