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 5935-01-461-8183
NSN 5935-01-466-7885
NSN 5945-01-028-2747
NSN 5975-01-473-0076
NSN 5855-01-033-1375
NSN 6685-01-475-8252
NSN 5895-01-035-4731
NSN 6130-01-474-4309
NSN 6145-01-021-2002
NSN 6240-01-424-4529
NSN 5930-00-409-5829
NSN 5965-01-322-8136