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 5930-01-271-7854
NSN 2925-01-125-9169
NSN 6240-01-214-0308
NSN 6220-00-333-8521
NSN 5920-00-642-9908
NSN 6105-01-506-0881
NSN 6105-00-925-2226
NSN 5930-00-088-8311
NSN 5835-01-493-1826
NSN 6685-01-010-8478
NSN 5950-01-325-3375
NSN 5920-01-600-3396