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 6130-01-142-2698
NSN 6620-00-470-3219
NSN 6110-01-015-0836
NSN 6645-00-318-5721
NSN 7035-01-416-5910
NSN 5945-01-560-9426
NSN 6620-00-269-5168
NSN 6145-00-596-8447
NSN 5920-01-641-1305
NSN 6610-00-161-7439
NSN 5925-01-227-0120
NSN 5990-00-519-3421