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 5895-00-001-3631
NSN 6135-00-603-4859
NSN 6610-01-555-8596
NSN 6150-01-114-9756
NSN 6105-01-634-0322
NSN 5996-01-301-4855
NSN 5965-00-170-5254
NSN 5998-01-251-6065
NSN 6220-01-644-1362
NSN 6650-01-309-3462
NSN 6240-01-463-1169
NSN 5905-01-499-2509