AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
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| Item Name | Sprocketwheel |
| Federal Supply Group (FSG) | Mechanical Power Transmission Equipment |
| Federal Supply Class (FSC) | 3020 Gear Pulley Sprocket and Transmission Chain |
| National Item Identification Number (NIIN) | 01-440-8989 (014408989) |
| NCB Code | USA (01) |
| Manufacturer | The Entwistle Company |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABHE | OUTSIDE DIAMETER | 3.720 INCHES NOMINAL |
| ABHP | OVERALL LENGTH | 1.000 INCHES NOMINAL |
| ABRR | KEYWAY WIDTH | 0.250 INCHES NOMINAL |
| ABXV | BORE DIAMETER | 1.002 INCHES NOMINAL |
| ADGE | BORE LENGTH | 1.000 INCHES NOMINAL |
| AEVF | DISTANCE FROM CENTER OF BORE TO BOTTOM OF KEYWAY | 0.626 INCHES NOMINAL |
| AGJS | PITCH DIAMETER | 3.401 INCHES NOMINAL |
| AQPL | FACE WIDTH | 0.343 INCHES NOMINAL |
| ARJD | DESIGN FORM | PLAIN |
| ASBP | BORE TYPE | STRAIGHT |
| AXND | COUNTERBORE FEATURE | NOT INCLUDED |
| BSGG | KEYING FACILITY | INCLUDED |
| BSGK | KEYING FACILITY TYPE | KEYWAY |
| BXSJ | LIGHTENING HOLE | NOT INCLUDED |
| BYDZ | PROTRUDING HUB CHARACTERISTIC | PLAIN |
| BYFH | BELT/CHAIN/FILM SIZE FOR WHICH DESIGNED | ROLLER CHAIN |
| BYFJ | ROLLER CHAIN PITCH TYPE FOR WHICH DESIGNED | SINGLE PITCH |
| BYFL | TEETH ROW QUANTITY | 1 |
| BYFN | TEETH QUANTITY PER ROW | 17 |
| BYFQ | HARDNESS RATING TEST METHOD | NOT RATED |
| BYFS | BORE BEARING | NOT INCLUDED |
| BYFW | HUB EXTERNAL KEYWAY | NOT INCLUDED |
| BYGF | TOOTH PITCH | 0.625 INCHES NOMINAL |
| BYZD | HUB END OUTSIDE DIAMETER AND LOCATION | 2.688 INCHES NOMINAL AA END |
| BYZF | DISTANCE FROM OUTSIDE FLANGE/RIM TO HUB END AND LOCATION | 0.656 INCHES NOMINAL AA END |
| MATL | MATERIAL | STEEL |
| NMBR | QUANTITY | 1 |
| STYL | III STYLE DESIGNATOR | PLAIN |
| Relevant Components for NSN - 3020-01-440-8989, 3020014408989 | ||||
| 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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