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 6135-01-230-4399
NSN 6610-01-514-3683
NSN 6135-01-136-1059
NSN 6620-00-290-6505
NSN 6620-00-109-9498
NSN 6685-00-663-9000
NSN 5996-00-455-8299
NSN 6110-00-418-9363
NSN 5855-00-951-6483
NSN 7035-01-328-7448
NSN 5998-01-100-1419
NSN 5990-01-255-7387