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 5910-01-584-0993
NSN 5990-01-277-2118
NSN 5905-00-921-6084
NSN 6610-01-440-9913
NSN 2925-01-484-8556
NSN 6650-01-451-1372
NSN 6685-00-627-6102
NSN 5920-00-252-3197
NSN 5985-01-347-0826
NSN 6240-01-599-9668
NSN 6240-00-212-4305
NSN 6105-01-422-3765