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		                        | National Stock Number:
 3020-00-173-2731
 
 Federal Supply Class:
 3020
 
 National Item Identification Number:
 001732731
 
 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:
 
 | 420263-1 | 80020 | NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 4.8.8.0.0.B BLDG 148-2 | 
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 Techincal Specification:
 
 | BEARINGS | NOT INCLUDED |  | BORE DIAMETER | 0.750 INCHES MINIMUM AND 0.755 INCHES MAXIMUM |  | BORE LENGTH | 0.562 INCHES NOMINAL |  | BORE FEATURE | INCLUDED |  | BORE TYPE | STRAIGHT |  | COUNTERBORE FEATURE | NOT INCLUDED |  | DESIGN FORM | PLAIN |  | FACE WIDTH | 0.562 INCHES NOMINAL |  | GROOVE QUANTITY | 1 |  | GROOVE RADIUS | 0.125 INCHES NOMINAL |  | GROOVE SHAPE | U |  | GROOVE WIDTH | 0.438 INCHES NOMINAL |  | GROOVE DEPTH | 2.500 INCHES NOMINAL |  | INTEGRAL COOLING VANE | NOT INCLUDED |  | KEYING FACILITY | NOT INCLUDED |  | LIGHTENING HOLE | NOT INCLUDED |  | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-20166, TYPE A, GRADE M MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |  | MATERIAL | STEEL COMP 1022 OVERALL |  | OUTSIDE DIAMETER | 3.000 INCHES NOMINAL |  | SPLIT HUB FEATURE | NOT INCLUDED |  | STYLE DESIGNATOR | PLAIN |  | SURFACE TREATMENT | PAINT | 
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