3040-00-720-3145 CLAMP,HUB Index 6685-00-720-3155 GAGE,PRESSURE,DIAL INDICATING

National Stock Number:
3040-00-720-3146

Federal Supply Class:
3040

National Item Identification Number:
007203146

Description:
COLLAR,SHAFT

Detail:
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.


Manufacturer Information:
906708518876U S ARMY AVIATION AND MISSILE COMMAND


Techincal Specification:
ANGLE BETWEEN CENTERLINES OF SECURING HOLES IN DEG90.0
BORE DIAMETER0.2500 INCHES MINIMUM AND 0.2502 INCHES MAXIMUM
LARGEST DIAMETER LENGTH0.046 INCHES NOMINAL
OUTSIDE DIAMETER1.000 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/5, ALLOY 2017, T4 FED SPEC SINGLE MATERIAL RESPONSE
MATERIALALUMINUM ALLOY 2017
NOMINAL THREAD SIZE0.086 INCHES ALL HOLES
SCREW THREAD SERIES DESIGNATOR AND LOCATIONALL HOLES UNC
SECURING HOLE QUANTITY2
SECURING HOLE TYPE AND LOCATIONTHREADED ALL HOLES
SMALL END DIAMETER0.748 INCHES MINIMUM AND 0.749 INCHES MAXIMUM
SURFACE FINISH125 MICROINCHES BOTH BEARING FLATS
SURFACE FINISH125 MICROINCHES LARGEST OUTSIDE PERIPHERY
SURFACE FINISH125 MICROINCHES OUTSIDE PERIPHERY
SURFACE FINISH16 MICROINCHES INSIDE PERIPHERY
SURFACE TREATMENTANODIZE
THICKNESS0.344 INCHES NOMINAL


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