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 5999-01-210-7199
NSN 5990-01-271-1628
NSN 6110-00-410-8517
NSN 5925-00-597-1558
NSN 6130-01-354-0508
NSN 5985-00-752-7408
NSN 5905-01-223-9315
NSN 5855-01-439-7214
NSN 6620-01-617-3915
NSN 6610-00-840-6187
NSN 6240-01-250-3574
NSN 6135-01-333-6737