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 6320-00-845-3261
NSN 5950-01-073-3077
NSN 6135-01-579-3534
NSN 6105-01-592-2582
NSN 5925-01-388-8095
NSN 5985-00-650-9883
NSN 5855-00-885-8452
NSN 7035-01-574-0062
NSN 5975-01-123-8587
NSN 5965-00-614-7280
NSN 5965-01-060-2558
NSN 6220-00-411-3544