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 5996-01-083-5162
NSN 2925-01-364-7926
NSN 5930-01-515-4331
NSN 5975-00-503-9190
NSN 6150-01-297-1690
NSN 5965-00-252-0803
NSN 6645-01-170-5402
NSN 5930-00-496-6928
NSN 5835-00-529-6307
NSN 6130-01-120-4617
NSN 5950-01-145-6214
NSN 6240-00-269-3346