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 5910-01-570-5510
NSN 6105-00-789-4884
NSN 6610-01-659-3277
NSN 5996-00-857-9810
NSN 5930-01-025-7193
NSN 6130-01-227-5538
NSN 6135-00-548-2765
NSN 6105-01-171-3256
NSN 5975-01-371-9426
NSN 2925-01-419-3805
NSN 5930-01-058-5158
NSN 5920-01-094-7284