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 5930-00-988-0255
NSN 6130-01-185-9976
NSN 6150-00-865-5270
NSN 5905-00-059-3629
NSN 5975-00-927-9538
NSN 5960-01-115-4088
NSN 6105-00-190-0224
NSN 5935-00-522-7923
NSN 7035-01-496-5896
NSN 6145-00-299-6245
NSN 6645-01-029-4525
NSN 6130-00-056-6718