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 4140-01-102-4616
NSN 6220-01-569-7971
NSN 5985-01-350-7435
NSN 5895-01-391-9753
NSN 5925-00-929-4741
NSN 6320-01-465-2028
NSN 6320-01-159-2211
NSN 6320-00-336-9123
NSN 5920-01-052-5020
NSN 5910-01-073-4601
NSN 5998-01-592-8659
NSN 6320-01-527-0211