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 5965-01-633-8849
NSN 5975-01-088-2761
NSN 5965-00-136-4178
NSN 5930-00-339-3451
NSN 6610-01-220-5262
NSN 5905-01-065-1663
NSN 5855-01-159-1654
NSN 6145-00-625-0714
NSN 6645-01-608-8638
NSN 6240-00-698-3137
NSN 6105-01-032-2856
NSN 6150-01-059-4753