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 5920-01-348-4217
NSN 7035-01-492-0419
NSN 5920-01-524-0222
NSN 6240-01-246-3248
NSN 5965-00-984-1393
NSN 4140-00-238-9940
NSN 6130-01-274-0861
NSN 5998-00-863-0202
NSN 6620-00-527-6523
NSN 5985-00-907-3263
NSN 6610-01-076-4800
NSN 5910-01-625-8216