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 6645-01-437-9017
NSN 6135-01-116-3385
NSN 5960-00-855-7643
NSN 6130-01-360-5637
NSN 4140-01-141-6526
NSN 5950-01-275-8258
NSN 6610-01-005-1190
NSN 6145-00-145-8573
NSN 6320-00-937-5625
NSN 5998-01-091-4514
NSN 5950-01-634-0677
NSN 6685-01-361-5998