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 5915-00-206-0086
NSN 5925-01-123-9866
NSN 6320-01-176-8367
NSN 5965-01-455-7388
NSN 6650-00-960-5040
NSN 6135-00-152-8729
NSN 6685-01-602-9019
NSN 5910-00-535-3892
NSN 7035-00-941-4949
NSN 4140-01-634-0330
NSN 5910-00-404-2124
NSN 6130-00-277-7321