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 6130-01-250-2386
NSN 6645-01-620-4837
NSN 5925-01-622-3506
NSN 5960-01-391-4701
NSN 5835-01-213-0833
NSN 6320-01-600-5808
NSN 5950-01-192-4368
NSN 5996-01-623-8237
NSN 6320-00-894-1644
NSN 6105-01-430-8946
NSN 5910-00-959-6099
NSN 6685-01-419-0909