3040-01-340-5912 SHAFT,SHOULDERED Index 3040-01-340-5914 SHAFT,SHOULDERED

National Stock Number:
3040-01-340-5913

Federal Supply Class:
3040

National Item Identification Number:
013405913

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.


Manufacturer Information:
70700-20130-10278286SIKORSKY AIRCRAFT CORPORATION


Techincal Specification:
END SIMILARITYNOT IDENTICAL
FIRST END DIAMETER0.3750 INCHES NOMINAL
FIRST END EXTERNAL THREAD LENGTH1.300 INCHES NOMINAL
FIRST END STYLEEXTERNAL THREADED
LARGEST STEP DIAMETER0.875 INCHES NOMINAL
OVERALL LENGTH4.750 INCHES NOMINAL
MATERIALSTEEL
SECOND END DIAMETER0.8745 INCHES NOMINAL
SECOND END STEP LENGTH1.500 INCHES NOMINAL
SECOND END STYLESQUARE (ROUND CORNERS)
SECOND END WIDTH ACROSS FLATS0.625 INCHES NOMINAL
STEP QUANTITY2
SURFACE FINISH16.0 MICROINCHES


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