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 5999-01-156-8029
NSN 6610-01-422-2376
NSN 5930-01-442-5110
NSN 5990-01-128-7599
NSN 5920-01-167-5029
NSN 7035-01-633-9537
NSN 6130-01-122-0690
NSN 6150-00-452-9078
NSN 5935-01-397-6316
NSN 6110-01-316-7285
NSN 6220-00-925-0522
NSN 6130-01-435-7169