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 6145-00-105-8031
NSN 6620-01-412-5514
NSN 6610-00-382-0266
NSN 5996-00-333-5182
NSN 5905-00-582-1356
NSN 5950-01-416-9915
NSN 5935-01-259-9270
NSN 2925-01-423-3003
NSN 6145-01-426-5392
NSN 5925-00-825-4370
NSN 7035-01-132-7209
NSN 6645-00-767-4234