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National Stock Number:
3020-00-171-1961
Federal Supply Class:
3020
National Item Identification Number:
001711961
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:
| 65355-12142-101 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| DRILLED HOLE DIAMETER | 0.281 INCHES NOMINAL | | BEARINGS | NOT INCLUDED | | BOLT CIRCLE DIAMETER | 3.437 INCHES NOMINAL | | BORE DIAMETER | 2.750 INCHES MINIMUM AND 2.754 INCHES MAXIMUM | | BORE LENGTH | 1.500 INCHES NOMINAL | | BORE FEATURE | INCLUDED | | BORE TYPE | STRAIGHT | | COUNTERBORE FEATURE | NOT INCLUDED | | DESIGN FORM | PLAIN | | FACE WIDTH | 1.500 INCHES NOMINAL | | GROOVE WIDTH | 0.345 INCHES MINIMUM AND 0.355 INCHES MAXIMUM | | GROOVE DEPTH | 0.350 INCHES MINIMUM AND 0.360 INCHES MAXIMUM | | GROOVE QUANTITY | 3 | | GROOVE SHAPE | V | | HOLE LOCATION | LOCATED ON PULLEY SURFACE 90 DEGREES APART | | INTEGRAL COOLING VANE | NOT INCLUDED | | LIGHTENING HOLE | NOT INCLUDED | | OUTSIDE DIAMETER | 5.200 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6, ALLOY 2024, T351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | ALUMINUM ALLOY 2024 OVERALL | | PITCH DIAMETER | 4.490 INCHES NOMINAL | | SECURING HOLE QUANTITY | 4 | | SECURING LOCATION | PULLEY SURFACE | | SECURING METHOD | DRILLED HOLE | | V GROOVE ANGLE IN DEG | 38.0 | | SPLIT HUB FEATURE | NOT INCLUDED | | STYLE DESIGNATOR | PLAIN | | SURFACE TREATMENT | CHROMIUM OXIDE |
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