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 5998-00-416-5311
NSN 6645-00-916-5615
NSN 6240-01-224-6941
NSN 6610-00-273-9019
NSN 5990-01-298-1913
NSN 5998-01-006-1824
NSN 5985-00-005-3334
NSN 5998-00-197-6380
NSN 5965-01-048-4767
NSN 6610-01-262-2273
NSN 4140-01-204-7025
NSN 5930-01-444-4402