| Item Name | Brake Drum |
| Federal Supply Group (FSG) | Vehicular Equipment Components |
| Federal Supply Class (FSC) | 2530 Vehicular Brake Steering Axle Wheel and Track Components |
| National Item Identification Number (NIIN) | 00-931-4701 (009314701) |
| NCB Code | USA (00) |
| Manufacturer | Caterpillar Inc, Mitsubishi Caterpillar Forklift |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABMK | OVERALL WIDTH | 3.062 INCHES NOMINAL |
| ABQS | COUNTERSUNK HOLE ANGLE IN DEG | 45.0 |
| ABTB | MOUNTING HOLE DIAMETER | 0.500 INCHES NOMINAL |
| ABTJ | MOUNTING HOLE QUANTITY | 12 |
| ADGA | OVERALL OUTSIDE DIAMETER | 11.750 INCHES NOMINAL |
| ADYT | CENTER HOLE DIAMETER | 6.625 INCHES NOMINAL |
| AJVW | ALIGNMENT HOLE QUANTITY | 2 |
| ALXY | MOUNTING HOLE SPACING | EQUALLY SPACED ON 8.125 IN. DIA BOLT CIRCLE |
| ANNQ | MATERIAL AND LOCATION | STEEL OVERALL |
| AYPQ | BRAKING SURFACE LOCATION | INTERNAL |
| AYQC | HOLE SIZE | 0.250 IN. RD |
| AYQE | HOLE SPACING | EQUALLY SPACED BETWEEN MTG HOLES 180 DEG APART |
| AYQF | COOLING FIN | NOT INCLUDED |
| AYQH | ADJUSTMENT HOLE | NOT INCLUDED |
| AYQJ | INSPECTION HOLE | NOT INCLUDED |
| AYQK | OIL DRAIN HOLE | NOT INCLUDED |
| AYQL | BALANCING PAD | NOT INCLUDED |
| Components Related to NSN - 2530-00-931-4701, 2530009314701 | ||||
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| 2590-01-255-4347 (2590012554347) | 2510-01-622-1940 (2510016221940) | 2530-00-231-5825 (2530002315825) | 2510-01-652-6662 (2510016526662) | |
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