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 5965-01-098-7028
NSN 6145-00-877-6888
NSN 5990-00-726-3516
NSN 5999-01-024-8905
NSN 6105-01-647-2545
NSN 5920-01-566-4914
NSN 6610-01-464-3037
NSN 2925-00-185-1618
NSN 6685-01-600-4761
NSN 6685-01-410-3456
NSN 6685-01-598-2121
NSN 5998-00-463-4463