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 6135-00-676-5807
NSN 5925-01-272-9577
NSN 5915-00-081-9939
NSN 5855-01-369-4192
NSN 6130-01-388-6043
NSN 6620-01-187-0880
NSN 5975-01-158-7483
NSN 4140-01-614-4139
NSN 5895-01-396-6992
NSN 7035-01-499-9239
NSN 5910-01-423-3495
NSN 6130-00-151-5001