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 2925-00-782-1498
NSN 6645-01-548-3934
NSN 5985-01-147-6101
NSN 5998-00-861-8974
NSN 5990-01-478-8638
NSN 6105-01-321-7063
NSN 5945-01-513-5162
NSN 6130-01-461-9408
NSN 6685-00-553-1995
NSN 5930-01-083-9453
NSN 6685-00-854-9169
NSN 6650-00-724-8258