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 5915-01-127-7024
NSN 5835-00-711-3371
NSN 6650-00-266-6808
NSN 5960-00-929-1276
NSN 5975-00-188-6514
NSN 6145-01-222-0907
NSN 6105-00-368-0066
NSN 5975-00-778-6336
NSN 6645-00-960-6594
NSN 5905-01-103-2184
NSN 5990-01-172-4553
NSN 5915-00-014-2759