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 6685-01-152-4203
NSN 6320-00-908-6841
NSN 6610-00-558-0480
NSN 6645-00-230-4396
NSN 6110-01-392-7019
NSN 5930-01-063-7497
NSN 5920-01-047-7904
NSN 6135-01-421-4855
NSN 5895-01-569-8083
NSN 6645-01-421-2445
NSN 5905-01-092-9893
NSN 6240-00-155-7900