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 5930-01-295-4518
NSN 6145-00-946-2033
NSN 5895-01-535-1395
NSN 5996-01-507-1515
NSN 5930-01-525-6981
NSN 5998-01-201-4497
NSN 6240-00-403-1272
NSN 6620-01-047-2787
NSN 5990-00-917-4220
NSN 5925-01-135-2025
NSN 5965-00-439-6287
NSN 5855-01-333-7108