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 5905-01-099-4497
NSN 6645-01-625-4810
NSN 5895-01-254-7672
NSN 2925-01-492-0159
NSN 5998-01-606-9241
NSN 5950-01-346-1242
NSN 6240-00-120-0140
NSN 6110-01-293-3549
NSN 2925-01-233-8545
NSN 6685-00-555-4198
NSN 6220-01-466-8702
NSN 7035-01-357-3726