An item for connecting two sets of grooves/keys (as of different diameters), changing groove/key size and/or spacing, or for changing groove/key configuration for uses not originally intended.
NSN 5985-01-610-1295
NSN 6320-01-046-5228
NSN 6220-01-141-6900
NSN 6610-01-660-3966
NSN 6220-01-423-0696
NSN 6320-01-578-6006
NSN 6150-00-765-4294
NSN 5960-01-177-7406
NSN 6620-01-200-6493
NSN 5835-01-656-2940
NSN 6110-01-138-5626
NSN 5905-00-480-5770