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 5905-00-684-4999
NSN 6610-00-611-1341
NSN 6220-01-059-6553
NSN 6220-00-406-3478
NSN 6105-01-459-2589
NSN 6650-01-348-5448
NSN 6105-00-763-5589
NSN 5998-01-479-0043
NSN 5935-01-430-4967
NSN 2925-00-383-3523
NSN 5950-01-420-6528
NSN 5998-01-255-1834