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 5965-01-023-0245
NSN 5905-01-218-2093
NSN 6610-01-464-3037
NSN 6130-00-469-2714
NSN 5835-00-187-1481
NSN 5905-01-485-2326
NSN 6610-00-237-9459
NSN 5996-01-444-4547
NSN 6320-00-004-9158
NSN 5985-01-224-7522
NSN 5996-01-018-6793
NSN 6320-00-593-0379