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 6135-00-161-0746
NSN 5985-00-012-5756
NSN 5998-01-535-1495
NSN 5960-00-942-0934
NSN 6620-01-023-2938
NSN 5965-01-299-0160
NSN 6130-00-266-7496
NSN 5985-00-914-6299
NSN 6220-01-271-6121
NSN 5855-01-475-4454
NSN 5835-00-233-6327
NSN 5965-00-215-5866