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 5910-00-556-4513
NSN 7035-00-267-5424
NSN 6110-01-624-0268
NSN 5985-01-013-6718
NSN 6130-01-094-7070
NSN 6620-00-500-0041
NSN 7035-01-103-3342
NSN 6220-01-101-2324
NSN 5910-01-581-1270
NSN 6130-01-408-9397
NSN 6135-00-708-0892
NSN 6620-00-468-3665