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 6645-01-300-9485
NSN 6145-01-028-9185
NSN 6135-00-182-7008
NSN 5925-01-047-8884
NSN 5965-01-277-4161
NSN 5960-01-286-3766
NSN 6240-00-146-9322
NSN 6150-01-527-0217
NSN 6685-01-101-2574
NSN 4140-01-606-5631
NSN 5855-01-515-9547
NSN 6610-00-559-9552