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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) | 01-039-1978 (010391978) |
| NCB Code | USA (01) |
| Manufacturer | The Boeing Company, Arvan Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABHP | Overall Length | 0.615 INCHES MINIMUM AND 0.620 INCHES MAXIMUM |
| STYL | Style Designator | PLAIN |
| MRC | Decoded Requirement | Clear Text Reply |
| AXHQ | Groove Quantity | 1 |
| BXSK | Integral Cooling Vane | NOT INCLUDED |
| BSGG | Keying Facility | NOT INCLUDED |
| ABGF | Groove Width | 0.320 INCHES MINIMUM AND 0.360 INCHES MAXIMUM |
| AWJQ | Bearings | INCLUDED |
| BYZF | Distance From Outside Flange/Rim To Hub End And Location | 0.113 INCHES MINIMUM BOTH ENDS AND 0.122 INCHES MAXIMUM BOTH ENDS |
| BYDS | Bore Feature | INCLUDED |
| ARJD | Design Form | PLAIN |
| BXSJ | Lightening Hole | NOT INCLUDED |
| BYZD | Hub End Outside Diameter And Location | 0.410 INCHES NOMINAL BOTH ENDS |
| ABHE | Outside Diameter | 1.750 INCHES NOMINAL |
| BSYG | Split Hub Feature | NOT INCLUDED |
| ADGE | Bore Length | 0.615 INCHES MINIMUM AND 0.620 INCHES MAXIMUM |
| ABXV | Bore Diameter | 0.250 INCHES NOMINAL |
| AQPL | Face Width | 0.493 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
| BYDZ | Protruding Hub Characteristic | PLAIN |
| BDDY | Bearing Quantity | 2 |
| ASBP | Bore Type | STRAIGHT |
| ANNQ | Material And Location | PLASTIC,PHENOLIC REINFORCED WITH NYLON,MIL-P-7034-OVERALL |
| BXSM | Groove Shape | U |
| AGWA | Groove Radius | 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM |
| AXND | Counterbore Feature | NOT INCLUDED |
| ABGA | Groove Depth | 0.625 INCHES NOMINAL |
| Relevant Components for NSN - 3020-01-039-1978, 3020010391978 | ||||
| 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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