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 5915-00-099-0347
NSN 6105-01-587-2068
NSN 7035-01-478-0212
NSN 6220-00-225-1732
NSN 5960-01-125-2356
NSN 6685-01-561-5506
NSN 5965-01-241-9865
NSN 2925-00-624-9199
NSN 6145-01-371-6250
NSN 2925-00-918-0859
NSN 6145-01-499-7324
NSN 5930-01-351-5664