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 5999-01-621-0442
NSN 6610-00-100-1195
NSN 5996-01-124-9877
NSN 5925-00-222-8263
NSN 5950-00-548-6699
NSN 6320-00-937-5625
NSN 5855-01-656-6808
NSN 5925-01-462-0068
NSN 5930-01-156-1513
NSN 5905-01-290-4093
NSN 5925-01-039-3764
NSN 6620-00-343-8229