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 6220-01-645-5767
NSN 5935-01-043-8802
NSN 6650-01-541-4357
NSN 5920-00-971-6795
NSN 6240-01-630-3442
NSN 5855-01-551-7923
NSN 5935-01-398-7726
NSN 6620-00-139-6498
NSN 6220-01-513-7789
NSN 5999-01-043-0343
NSN 6145-01-394-3122
NSN 5965-01-354-1677