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 6220-01-615-3608
NSN 6105-00-346-2391
NSN 6135-00-938-1351
NSN 5915-00-274-2282
NSN 5950-01-415-8564
NSN 5996-01-618-7620
NSN 5990-00-082-3107
NSN 5920-01-144-8920
NSN 5945-00-161-4014
NSN 5910-01-103-7285
NSN 4140-00-024-0186
NSN 2925-01-464-3093