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 5965-00-735-9315
NSN 5915-00-410-5127
NSN 7035-00-043-1325
NSN 6620-01-449-8743
NSN 6685-00-526-7916
NSN 6685-01-388-2236
NSN 6685-00-792-5714
NSN 6620-01-069-0912
NSN 6240-00-126-4551
NSN 5835-00-406-3583
NSN 5925-01-365-2404
NSN 5990-01-204-4874