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 5945-01-094-7518
NSN 5895-01-585-0902
NSN 6220-01-038-8292
NSN 5945-01-160-1783
NSN 5905-00-254-3272
NSN 5935-00-608-5357
NSN 5985-01-552-8917
NSN 6610-00-099-4096
NSN 2925-01-658-4470
NSN 6610-01-597-2911
NSN 6110-01-094-7870
NSN 6685-00-424-7557