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 5925-00-964-9654
NSN 2925-00-041-0439
NSN 6645-00-476-7176
NSN 5855-01-617-1935
NSN 6135-01-097-9317
NSN 5910-01-336-9841
NSN 5935-01-440-7854
NSN 6145-01-299-4783
NSN 5910-01-529-7205
NSN 5996-01-502-9215
NSN 5905-01-539-7237
NSN 5960-01-485-2467