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 7035-00-124-9383
NSN 5975-01-380-5286
NSN 6110-01-160-9142
NSN 6135-00-921-6487
NSN 5960-00-003-6631
NSN 6610-00-435-8370
NSN 5855-01-570-9714
NSN 6150-00-819-1112
NSN 5910-00-123-5727
NSN 6320-01-192-0332
NSN 5965-00-263-6436
NSN 5915-00-432-6333