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 6620-00-925-8435
NSN 5925-01-010-2925
NSN 5975-00-403-4983
NSN 6150-00-932-8314
NSN 5855-00-107-7993
NSN 5965-00-977-5658
NSN 5915-01-160-2397
NSN 6150-00-528-4175
NSN 5930-01-441-9400
NSN 5910-01-453-4761
NSN 6620-01-020-4526
NSN 5935-01-483-6335