AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| 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) | 00-863-5599 (008635599) |
| NCB Code | USA (00) |
| Manufacturer | Dayton Walther Corp, Durable Metal Products Co |
| MRC | Criteria | Characteristic |
|---|---|---|
| ALXY | MOUNTING HOLE SPACING | EQUALLY SPACED ON 5.496 IN. MIN;,5.504 IN. MAX BOLT HOLE CIRCLE |
| AYQH | ADJUSTMENT HOLE | NOT INCLUDED |
| AYQJ | INSPECTION HOLE | NOT INCLUDED |
| ABMK | OVERALL WIDTH | 3.000 INCHES NOMINAL |
| ABTB | MOUNTING HOLE DIAMETER | 0.625 INCHES MINIMUM AND 0.630 INCHES MAXIMUM |
| ABTJ | MOUNTING HOLE QUANTITY | 5 |
| ADGA | OVERALL OUTSIDE DIAMETER | 10.375 INCHES NOMINAL |
| ADYT | CENTER HOLE DIAMETER | 4.157 INCHES MINIMUM AND 4.160 INCHES MAXIMUM |
| ANNQ | MATERIAL AND LOCATION | STEEL MOUNTING DISK AND IRON,CAST WEAR SURFACE |
| AYPQ | BRAKING SURFACE LOCATION | INTERNAL |
| AYQA | BRAKING SURFACE DIAMETER | 8.995 INCHES MINIMUM AND 9.000 INCHES MAXIMUM |
| AYQB | BRAKING SURFACE WIDTH | 2.000 INCHES NOMINAL |
| AYQF | COOLING FIN | NOT INCLUDED |
| AYQK | OIL DRAIN HOLE | NOT INCLUDED |
| FEAT | SPECIAL FEATURES | W/SLOT FOR FEELER GAGE |
| AYQL | BALANCING PAD | NOT INCLUDED |
| Relevant Components for NSN - 2530-00-863-5599, 2530008635599 | ||||
| 2520-01-004-7153 (2520010047153) | 2590-01-487-0910 (2590014870910) | 2540-01-607-3053 (2540016073053) | 2510-01-449-6759 (2510014496759) | |
| 2530-00-115-0182 (2530001150182) | 2510-01-241-4737 (2510012414737) | 2520-01-685-4192 (2520016854192) | 2510-01-289-2411 (2510012892411) | |
| 2510-01-657-4557 (2510016574557) | 2540-01-217-8229 (2540012178229) | 2530-01-321-8489 (2530013218489) | 2540-00-997-2299 (2540009972299) | |
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