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 5999-01-590-8549
NSN 6645-01-258-5558
NSN 5915-01-280-2717
NSN 5975-01-496-5917
NSN 5996-00-816-9320
NSN 5960-01-050-0264
NSN 7035-00-215-3272
NSN 5925-01-087-7560
NSN 6620-01-392-7191
NSN 6135-01-069-2482
NSN 5925-01-436-4943
NSN 5985-01-275-3979