Steel 4140; finish black oxide; 3.250 in. Diameter first end, 2.000 in. Diameter second end, 2.030 in. Lg; 4 holes dr and counterbore for 0.250 in.-20
No other part numbers with same form, fit, and function found.
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.
Classification: Interchangeable tools for handtools or for machine tools, nesoi, and base metal parts thereof
NSN 6105-00-870-0931
NSN 4140-01-145-8098
NSN 6685-00-770-2052
NSN 5999-01-425-1377
NSN 5855-00-316-5050
NSN 5915-01-485-0850
NSN 5999-00-060-9556
NSN 6320-00-194-4252
NSN 5915-01-009-8422
NSN 5999-01-072-0978
NSN 5960-01-237-2336
NSN 5920-00-271-3217