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 5915-01-267-9738
NSN 5950-01-381-5610
NSN 5950-01-108-7317
NSN 5975-01-369-8163
NSN 6240-01-578-2334
NSN 5915-01-415-3100
NSN 6110-01-554-6609
NSN 7035-01-467-4539
NSN 5835-00-289-9080
NSN 6145-01-350-9918
NSN 6135-01-255-9129
NSN 5990-01-606-1873