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| Item Name | Pulley Groove |
| Federal Supply Group (FSG) | Mechanical Power Transmission Equipment |
| Federal Supply Class (FSC) | 3020 Gear Pulley Sprocket and Transmission Chain |
| National Item Identification Number (NIIN) | 00-640-2772 (006402772) |
| NCB Code | USA (00) |
| Manufacturer | Allis Chalmers Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUJ | SPLINE MAJOR DIAMETER | 0.874 INCHES MINIMUM AND 0.875 INCHES MAXIMUM |
| ABGA | GROOVE DEPTH | 0.688 INCHES NOMINAL |
| ABGF | GROOVE WIDTH | 0.654 INCHES MINIMUM AND 0.656 INCHES MAXIMUM |
| ABHE | OUTSIDE DIAMETER | 7.082 INCHES MINIMUM AND 7.098 INCHES MAXIMUM |
| ABHP | OVERALL LENGTH | 2.000 INCHES NOMINAL |
| ABSA | SPLINE QUANTITY | 6 |
| ABSC | SPLINE MINOR DIAMETER | 0.699 INCHES MINIMUM AND 0.700 INCHES MAXIMUM |
| AGGS | V GROOVE ANGLE IN DEG | 36.0 |
| AGJS | PITCH DIAMETER | 6.590 INCHES NOMINAL |
| ANNQ | MATERIAL AND LOCATION | IRON OVERALL |
| AQPL | FACE WIDTH | 1.000 INCHES NOMINAL |
| ARJD | DESIGN FORM | WEBBED |
| ASBP | BORE TYPE | INVOLUTE SPLINE OR SPLINED |
| AXFH | SPLINE LENGTH | 2.000 INCHES NOMINAL |
| AXHQ | GROOVE QUANTITY | 1 |
| AXND | COUNTERBORE FEATURE | NOT INCLUDED |
| BSGG | KEYING FACILITY | NOT INCLUDED |
| BSYG | SPLIT HUB FEATURE | NOT INCLUDED |
| BXSH | WEB/SPOKE RELATIONSHIP TO FACE CENTERLINE | NOT OFFSET |
| BXSJ | LIGHTENING HOLE | INCLUDED |
| BXSK | INTEGRAL COOLING VANE | NOT INCLUDED |
| BXSM | GROOVE SHAPE | V |
| BYDS | BORE FEATURE | NOT INCLUDED |
| BYZD | HUB END OUTSIDE DIAMETER AND LOCATION | 1.281 INCHES NOMINAL AA END AND 1.336 INCHES NOMINAL BB END AND 1.340 INCHES NOMINAL BB END |
| BYZF | DISTANCE FROM OUTSIDE FLANGE/RIM TO HUB END AND LOCATION | 0.535 INCHES NOMINAL AA END AND 0.541 INCHES NOMINAL AA END AND 0.459 INCHES NOMINAL BB END AND 0.465 INCHES NOMINAL BB END |
| FEAT | SPECIAL FEATURES | 4 RIBS LOCATED ON BB END SPACED 90 DEG APART,1/4 IN. W AND FLUSH WITH FACE,4 HOLES,11/64 IN. DIA,NO. 12-24 NC THD LOCATED ON 2.245 IN. MIN TO 2.250 IN. MAX DIA BOLT CIRCLE ON RIB S FOR SECURING FAN |
| STYL | STYLE DESIGNATOR | WEBBED OR SPOKED |
| ZZZV | FSC APPLICATION DATA | ENGINE GENERATOR DRIVE |
| Relevant Components for NSN - 3020-00-640-2772, 3020006402772 | ||||
| 3040-99-750-9441 (3040997509441) | 3040-01-309-9880 (3040013099880) | 3020-00-056-1680 (3020000561680) | 3040-01-592-1774 (3040015921774) | |
| 3040-01-340-6053 (3040013406053) | 3040-01-424-7637 (3040014247637) | 3020-00-762-8849 (3020007628849) | 3040-01-411-4890 (3040014114890) | |
| 3020-01-163-7221 (3020011637221) | 3030-00-041-2888 (3030000412888) | 3030-00-421-7151 (3030004217151) | 3040-01-256-3453 (3040012563453) | |
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