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 6220-01-242-6702
NSN 6610-01-010-3159
NSN 5990-01-345-1468
NSN 6645-01-124-3935
NSN 6105-00-924-1476
NSN 5930-00-824-1171
NSN 6110-01-145-1481
NSN 5990-00-906-4840
NSN 6145-00-512-6675
NSN 5895-00-099-9532
NSN 5925-01-432-6603
NSN 6320-00-149-7570