NSN 3040-01-280-4123

Part Details | SHOULDERED SHAFT

3040-01-280-4123 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: C12828541, C-1282-85-41, 3040-01-280-4123, 01-280-4123, 3040012804123, 012804123

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
30JUN 09, 198801-280-412322914 ( SHAFT, SHOULDERED )
REFERENCE DRAWINGS & PICTURES

FLAT KEYWAY

FLAT KEYWAY

Cross Reference | NSN 3040-01-280-4123
Part Number Cage Code Manufacturer
C-1282-85-4167121MCELROY MARINE MACHINERY
Technical Data | NSN 3040-01-280-4123
Characteristic Specifications
FIRST END STYLE FLAT KEYWAY
MATERIAL STEEL COMP 1045
FIRST END KEYWAY WIDTH0.6550 INCHES NOMINAL
FIRST END EXTERNAL KEYWAY LENGTH3.500 INCHES NOMINAL
FIRST END KEYWAY DEPTH0.655 INCHES NOMINAL
FIRST END DIAMETER2.1148 INCHES NOMINAL
END SIMILARITY NOT IDENTICAL
SECOND END STYLE FLAT KEYWAY
SECOND END KEYWAY WIDTH0.7500 INCHES NOMINAL
SECOND END EXTERNAL KEYWAY LENGTH3.500 INCHES NOMINAL
SECOND END KEYWAY DEPTH0.750 INCHES NOMINAL
SECOND END DIAMETER2.9900 INCHES NOMINAL
LARGEST STEP DIAMETER4.500 INCHES NOMINAL
OVERALL LENGTH44.9687 INCHES NOMINAL
STEP QUANTITY6