NSN 3040-01-278-2138

Part Details | SHOULDERED SHAFT

3040-01-278-2138 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: SMD8501632, SM-D-850163-2, 3040-01-278-2138, 01-278-2138, 3040012782138, 012782138

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
30MAY 03, 198801-278-213822914 ( SHAFT, SHOULDERED )
REFERENCE DRAWINGS & PICTURES

PLAIN

PLAIN

Cross Reference | NSN 3040-01-278-2138
Part Number Cage Code Manufacturer
SM-D-850163-280063US ARMY COMMUNICATIONS &ELECTRONICS MATERIEL READINESS
Technical Data | NSN 3040-01-278-2138
Characteristic Specifications
FIRST END STYLE PLAIN
MATERIAL STEEL COMP 17-4PH
FIRST END DIAMETER0.1250 INCHES NOMINAL
END SIMILARITY NOT IDENTICAL
SECOND END STYLE2 PLAIN
SECOND END DIAMETER0.2160 INCHES NOMINAL
SECOND END EXTERNAL THREAD LENGTH0.203 INCHES NOMINAL
LARGEST STEP DIAMETER2.488 INCHES NOMINAL
OVERALL LENGTH2.688 INCHES NOMINAL
STEP QUANTITY2
SPECIAL FEATURESTHREADED END INCLUDES SQUARE SOCKET 0.1243 IN