National Item Identification Number

00-243-7352
002437352
3040-00-243-7352
3040002437352

National Stock Number

Item Name

COLLAR,SHAFT

Federal Supply Class

3040

Description

An item designed to be mounted around a shaft to limit axial movement of the shaft and/or its assembled parts. It is secured directly to the shaft by use of a setscrew(s), pin(s), or the like, which may be a part of the item of supply. A pilot hole drilled in or through the wall(s) for drilling and pinning at application may be considered a method of securing. Solid items have a bearing surface on one or both end(s) perpendicular to the axis. For items designed to be mounted around the extended hub portion of a mounted item on a shaft or clamp around a shaft, see CLAMP, HUB. See also BEARING, SLEEVE; BUSHING, SLEEVE; SPACER, SLEEVE; and COUPLING, SHAFT, RIGID.

Commercial and Government Entity Code (Supplier Data)

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Reference Numbers (Part Numbers)

M921A

Required Categories

MATERIAL
STYLE DESIGNATOR
OUTSIDE DIAMETER
THICKNESS
BORE DIAMETER
SECURING

Required Description

STEEL
A1 PLAIN ROUND
4.375 INCHES NOMINAL
1.375 INCHES NOMINAL
3.3438 INCHES