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National Stock Number:
3040-01-124-2758
Federal Supply Class:
3040
National Item Identification Number:
011242758
Description:
SHAFT,SHOULDERED
Detail:
A shaft having two or more different diameters (greater than 0.031 inches (0.79 millimeter)) along its length. It must have one or more of the following conditions: a specified surface finish designation in the range 1 to 125 microinches (0.025 to 3.2 micrometers) arithmetical average (AA), machined peripheral flat(s), circular groove(s), keyway(s), splines, threads, or holes. The ends and/or shoulders may be machined to accommodate bearings, couplings, and the like. It is not designed for use in aligning by fitting into corresponding holes of another item. For items used to support rotating members see AXLE(1), SHOULDERED. For items not having any of the above conditions see PIN, SHOULDER, HEADLESS. Excludes SHAFT(1), STRAIGHT; and AXLE(1), STRAIGHT.
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Manufacturer Information:
| MR134-8 | 56848 | UNITED STATES DEPARTMENT OF TREASURY MINT PROCUREMENT DIV |
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Techincal Specification:
| END SIMILARITY | IDENTICAL | | FIRST END FLAT DEPTH | 0.0310 INCHES NOMINAL | | FIRST END FLAT LENGTH | 0.500 INCHES NOMINAL | | FIRST END DIAMETER | 0.4880 INCHES MINIMUM AND 0.4900 INCHES MAXIMUM | | FIRST END STYLE | FLATTED | | OVERALL LENGTH | 2.250 INCHES NOMINAL | | LARGEST STEP DIAMETER | 1.000 INCHES NOMINAL | | MATERIAL | STEEL | | SPECIAL FEATURES | 0.031 IN. BY 45.0 DEG CHAMFER BOTH ENDS; 0.375 IN. DIA THRU-DRILL CENTRALLY LOCATED ON LARGEST DIA PARELLEL TO FLATS; 0.250-20 UNC THREADED HOLE,CENTRALLY LOCATED BETWEEN FLATS AND PERPENDICULAR TO THRU-DRILL,ACCOMMODATES 0.375 IN. LONG 0.250-20 UNC THREADED SETSCREW | | STEP QUANTITY | 3 |
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