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 5965-01-074-3083
NSN 5930-01-400-6126
NSN 5950-01-653-9499
NSN 6105-01-629-8696
NSN 6135-00-009-4100
NSN 6320-00-456-2092
NSN 5930-01-156-5937
NSN 6105-01-415-1422
NSN 6130-00-596-9565
NSN 6620-00-786-7049
NSN 6105-01-606-1209
NSN 5925-00-264-6256