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 5945-01-509-4207
NSN 5998-01-439-4722
NSN 5950-00-269-0035
NSN 5998-01-369-9300
NSN 6620-01-398-8986
NSN 6105-00-879-6371
NSN 5910-01-334-9759
NSN 6220-01-641-1319
NSN 5985-00-110-8655
NSN 5945-01-083-5029
NSN 6620-01-536-7799
NSN 5895-01-233-0683