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 5895-00-233-7309
NSN 5960-01-251-5995
NSN 5990-01-529-6347
NSN 5999-01-296-5433
NSN 5950-01-415-1563
NSN 6320-01-270-1419
NSN 6685-01-484-1836
NSN 5915-01-440-8846
NSN 6650-00-769-3003
NSN 6650-01-444-1321
NSN 6610-01-237-5815
NSN 5930-01-228-2099