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National Stock Number:
3040-01-287-4048
Federal Supply Class:
3040
National Item Identification Number:
012874048
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:
| 4489817 | 81898 | SUPERVISOR OF SHIPBUILDING CONVERSION AND REPAIR USN | | 4489817 PIECE 1 | 81898 | SUPERVISOR OF SHIPBUILDING CONVERSION AND REPAIR USN |
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Techincal Specification:
| END SIMILARITY | NOT IDENTICAL | | EXTERNAL KEYWAY LENGTH | 0.594 INCHES NOMINAL SECOND END | | EXTERNAL KEYWAY LENGTH | 2.125 INCHES NOMINAL FIRST END | | FIRST END DIAMETER | 1.0025 INCHES NOMINAL | | FIRST END KEYWAY DEPTH | 0.1395 INCHES NOMINAL | | FIRST END KEYWAY WIDTH | 0.2500 INCHES NOMINAL | | FIRST END STYLE | FLAT KEYWAY | | LARGEST STEP DIAMETER | 1.4365 INCHES NOMINAL | | OVERALL LENGTH | 26.000 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-286, CLASS A FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | NICKEL ALLOY | | SECOND END EXTERNAL THREAD LENGTH | 0.375 INCHES NOMINAL | | SECOND END DIAMETER | 1.1730 INCHES NOMINAL | | SECOND END STYLE | EXTERNALLY THREADED AND FLAT KEYWAY | | SECOND END KEYWAY DEPTH | 0.111 INCHES NOMINAL | | SECOND END KEYWAY WIDTH | 0.1875 INCHES NOMINAL | | SPECIAL FEATURES | USED IN AUXILIARY MACHINERY COOLING WATER PUMP, CENTRIFUGAL | | STEP QUANTITY | 10 | | SURFACE FINISH | 8.0 MICROINCHES |
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