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 5920-01-375-9461
NSN 6685-00-483-1417
NSN 6130-00-205-1714
NSN 5985-00-205-2922
NSN 7035-00-408-8170
NSN 6130-00-245-3251
NSN 5960-00-054-7561
NSN 6610-00-584-5055
NSN 6135-00-100-8890
NSN 5996-01-539-5995
NSN 5920-01-237-7854
NSN 5895-00-770-8445