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National Stock Number:
3040-01-496-1890
Federal Supply Class:
3040
National Item Identification Number:
014961890
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:
| 218033192 | 96169 | ELECTRIC BOAT CORPORATION | | 581-6985420 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 581-6985420-8 | 53711 | NAVAL SEA SYSTEMS COMMAND | | H611-1404-8 | 96169 | ELECTRIC BOAT CORPORATION |
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Techincal Specification:
| END SIMILARITY | NOT IDENTICAL | | EXTERNAL KEYWAY LENGTH | 2.125 INCHES MINIMUM AND 2.137 INCHES MAXIMUM SECOND END | | FIRST END DIAMETER | 3.0000 INCHES NOMINAL | | FIRST END STEP LENGTH | 2.190 INCHES NOMINAL | | FIRST END STYLE | SQUARE (ROUND CORNERS) | | FIRST END WIDTH ACROSS FLATS | 0.998 INCHES MINIMUM AND 1.000 INCHES MAXIMUM | | LARGEST STEP DIAMETER | 3.000 INCHES NOMINAL | | OVERALL LENGTH | 12.640 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-286,FORM:2,CONDITION:ANNEALED&AGE HARDENED,FIN:B FED SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | NICKEL ALLOY | | SECOND END DISTANCE FROM END TO GROOVE | 1.340 INCHES NOMINAL | | SECOND END EXTERNAL THREAD LENGTH | 1.340 INCHES NOMINAL | | SECOND END GROOVE DIAMETER | 0.5900 INCHES NOMINAL | | SECOND END GROOVE WIDTH | 0.3000 INCHES NOMINAL | | SECOND END DIAMETER | 0.7500 INCHES NOMINAL | | SECOND END STYLE | CIRCULAR GROOVED FLAT KEYWAY AND EXTERNALLY THREADED | | SECOND END KEYWAY DEPTH | 0.197 INCHES MINIMUM AND 0.213 INCHES MAXIMUM | | SECOND END KEYWAY WIDTH | 0.3750 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM | | SPECIFICATION/STANDARD DATA | 81348-QQ-N-286,FORM:2,CONDITION:ANNEALED & AGE HARDENED,FINISH:B GOVERNMENT SPECIFICATION | | SPECIAL FEATURES | SECOND END OF SHAFT HAS 0.750-10 UNC-2B THREADS; FIRST END CHAMFERED 0.060 INCH X 45 DEGREES AND SECOND END CHAMFERED 0.080 INCH X 45 DEGREES | | STEP QUANTITY | 6 | | SURFACE FINISH | 63.0 MICROINCHES |
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