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		                        | National Stock Number:
 3020-00-404-2959
 
 Federal Supply Class:
 3020
 
 National Item Identification Number:
 004042959
 
 Description:
 PULLEY,GROOVE
 
 Detail:
 A pulley with one or more grooved faces or rims of the same diameter. For pulleys encased in a shell or frame, see BLOCK, TACKLE.  For items specifically designed for aviation, see PULLEY(1), GROOVE, AVIATION.
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 Manufacturer Information:
 
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 Techincal Specification:
 
 | BEARINGS | NOT INCLUDED |  | BORE DIAMETER | 1.000 INCHES NOMINAL |  | BORE LENGTH | 1.156 INCHES NOMINAL |  | BORE FEATURE | INCLUDED |  | BORE TYPE | STRAIGHT |  | COUNTERBORE FEATURE | NOT INCLUDED |  | DESIGN FORM | WEBBED |  | DISTANCE FROM OUTSIDE FLANGE/RIM TO HUB END AND LOCATION | 2.625 INCHES NOMINAL AA END AND 2.437 INCHES NOMINAL BB END |  | FACE WIDTH | 1.000 INCHES NOMINAL |  | GROOVE QUANTITY | 1 |  | GROOVE SHAPE | V |  | GROOVE WIDTH | 0.437 INCHES NOMINAL |  | GROOVE DEPTH | 0.625 INCHES NOMINAL |  | HOLE LOCATION | THRU @WALL PARALLEL TO BORE 180 DEG APART |  | HUB END OUTSIDE DIAMETER AND LOCATION | 1.750 INCHES NOMINAL AA END |  | INTEGRAL COOLING VANE | NOT INCLUDED |  | KEYING FACILITY | NOT INCLUDED |  | LIGHTENING HOLE | NOT INCLUDED |  | PITCH DIAMETER | 4.516 INCHES NOMINAL |  | MATERIAL | STEEL OVERALL |  | OUTSIDE DIAMETER | 5.187 INCHES NOMINAL |  | OVERALL LENGTH | 3.625 INCHES NOMINAL |  | SECURING HOLE QUANTITY | 2 |  | SECURING LOCATION | AA END |  | SECURING METHOD | THREADED HOLE(S) |  | SPLIT HUB FEATURE | NOT INCLUDED |  | STYLE DESIGNATOR | WEBBED OR SPOKED |  | THREAD SIZE | 0.375-18 |  | V GROOVE ANGLE IN DEG | 20.0 |  | WEB/SPOKE RELATIONSHIP TO FACE CENTERLINE | OFFSET | 
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