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National Stock Number:
3040-01-243-3549
Federal Supply Class:
3040
National Item Identification Number:
012433549
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:
| 520-4674705 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 520-4674705 ITEM 27SS | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 87611-1419 | 96169 | ELECTRIC BOAT CORPORATION | | 87611-1419 ITEM 27SS | 96169 | ELECTRIC BOAT CORPORATION |
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Techincal Specification:
| END SIMILARITY | NOT IDENTICAL | | FIRST END DISTANCE FROM KEYWAY CENTER TO END | 1.3275 INCHES NOMINAL | | FIRST END EXTERNAL KEYWAY LENGTH | 2.275 INCHES NOMINAL | | FIRST END DIAMETER | 1.7470 INCHES NOMINAL | | FIRST END KEYWAY DEPTH | 0.215 INCHES NOMINAL | | FIRST END KEYWAY WIDTH | 0.3760 INCHES NOMINAL | | FIRST END STYLE | INDENTED FLAT KEYWAY | | LARGEST STEP DIAMETER | 3.880 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-288,CLASS A FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | NICKEL ALLOY | | PROPRIETARY CHARACTERISTICS | PACS | | OVERALL LENGTH | 26.000 INCHES NOMINAL | | SECOND END DIAMETER | 1.7470 INCHES NOMINAL | | SECOND END ANGLE BETWEEN KEYWAYS | 99.0 DEGREES NOMINAL | | SECOND END KEYWAY DEPTH | 0.215 INCHES MINIMUM AND 0.247 INCHES MAXIMUM | | SECOND END KEYWAY WIDTH | 0.2610 INCHES MINIMUM AND 0.3760 INCHES MAXIMUM | | SECOND END DISTANCE FROM KEYWAY CENTER TO END | 1.6275 INCHES MINIMUM AND 1.8100 INCHES MAXIMUM | | SECOND END EXTERNAL KEYWAY LENGTH | 2.500 INCHES MINIMUM AND 2.875 INCHES MAXIMUM | | SECOND END STYLE | TWO INDENTED FLAT KEYWAYS | | STEP QUANTITY | 4 | | SURFACE FINISH | 32.0 MICROINCHES |
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