NSN 3040-01-254-4539

Part Details | SHOULDERED SHAFT

3040-01-254-4539 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.

Alternate Parts: STC902323, STC90232-3, 3040-01-254-4539, 01-254-4539, 3040012544539, 012544539

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
30MAY 05, 198701-254-453922914 ( SHAFT, SHOULDERED )
REFERENCE DRAWINGS & PICTURES

CIRCULAR GROOVED

CIRCULAR GROOVED

Cross Reference | NSN 3040-01-254-4539
Part Number Cage Code Manufacturer
STC90232-307132SPEC TOOL COMPANY
Technical Data | NSN 3040-01-254-4539
Characteristic Specifications
FIRST END STYLE CIRCULAR GROOVED
MATERIAL STEEL COMP 4130
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE
SURFACE FINISH125.0 MICROINCHES
FIRST END GROOVE WIDTH0.0460 INCHES MINIMUM AND 0.0490 INCHES MAXIMUM
FIRST END GROOVE DIAMETER0.7120 INCHES MINIMUM AND 0.7180 INCHES MAXIMUM
FIRST END DISTANCE FROM END TO GROOVE0.1110 INCHES MINIMUM AND 0.1140 INCHES MAXIMUM
FIRST END DIAMETER0.7490 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM
END SIMILARITY NOT IDENTICAL
SECOND END STYLE CIRCULAR GROOVED
SECOND END GROOVE WIDTH0.0460 INCHES MINIMUM AND 0.0490 INCHES MAXIMUM
SECOND END GROOVE DIAMETER0.9520 INCHES MINIMUM AND 0.9580 INCHES MAXIMUM
SECOND END DISTANCE FROM END TO GROOVE0.0460 INCHES MINIMUM AND 0.0490 INCHES MAXIMUM
SECOND END DIAMETER0.9990 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM
LARGEST STEP DIAMETER1.249 INCHES MINIMUM AND 1.250 INCHES MAXIMUM
OVERALL LENGTH7.550 INCHES MINIMUM AND 7.770 INCHES MAXIMUM
STEP QUANTITY1
END ITEM IDENTIFICATION1730-01-076-5468
SUPPLEMENTARY FEATURESGEARBOX SHAFT APPL