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 7035-01-141-8076
NSN 6610-01-227-7221
NSN 6610-01-630-7202
NSN 6650-00-710-8130
NSN 5950-01-044-5039
NSN 5920-00-057-3876
NSN 5990-00-201-1162
NSN 5960-00-976-3262
NSN 5975-00-991-7189
NSN 5895-01-437-1564
NSN 5945-00-756-5242
NSN 5996-00-882-0791