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 6240-00-299-9819
NSN 5965-00-170-5254
NSN 5905-00-013-7598
NSN 5990-00-316-8872
NSN 5905-01-336-2237
NSN 6135-01-148-8531
NSN 5835-01-143-4985
NSN 5999-00-934-8747
NSN 5915-01-617-7044
NSN 5905-01-224-2507
NSN 6130-00-052-6248
NSN 5895-01-488-6947