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 5855-00-411-8688
NSN 5998-01-634-0604
NSN 5996-00-740-8315
NSN 5855-01-076-2741
NSN 5920-00-276-3403
NSN 6110-01-160-0214
NSN 5905-00-528-9975
NSN 6620-01-540-8144
NSN 6610-00-594-6372
NSN 5905-01-267-8857
NSN 5975-01-375-3187
NSN 5855-01-144-4837