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National Stock Number:
3040-01-138-6930
Federal Supply Class:
3040
National Item Identification Number:
011386930
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:
| 12289946 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| END SIMILARITY | NOT IDENTICAL | | FIRST END DIAMETER | 0.3250 INCHES NOMINAL | | FIRST END EXTERNAL THREAD LENGTH | 0.562 INCHES NOMINAL | | FIRST END STYLE | EXTERNAL THREADED | | LARGEST STEP DIAMETER | 0.780 INCHES NOMINAL | | OVERALL LENGTH | 4.190 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A322 ASSN STD ALL MATERIAL RESPONSES OR ASTM A331 ASSN STD ALL MATERIAL RESPONSES | | MATERIAL | STEEL COMP 4140 | | SECOND END EXTERNAL THREAD LENGTH | 0.625 INCHES NOMINAL | | SECOND END DIAMETER | 0.3750 INCHES NOMINAL | | SECOND END STYLE | EXTERNAL THREADED | | SPECIAL FEATURES | FIRST END THDS 0.3750-16UNC-2A; SECOND END THDS 0.325-24UNF-2A | | STEP QUANTITY | 4 | | SURFACE FINISH | 125.0 MICROINCHES |
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