| 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) | 00-557-3210 (005573210) |
| NCB Code | USA (00) |
| Manufacturer | Army United States Department Of The |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABMK | OVERALL WIDTH | 9.813 INCHES NOMINAL |
| ABTB | MOUNTING HOLE DIAMETER | 0.813 INCHES NOMINAL |
| ABTJ | MOUNTING HOLE QUANTITY | 10 |
| ADGA | OVERALL OUTSIDE DIAMETER | 18.813 INCHES NOMINAL |
| ADYT | CENTER HOLE DIAMETER | 7.125 INCHES NOMINAL |
| ALXY | MOUNTING HOLE SPACING | EQUALLY SPACED ON 11-1/4 IN. BOLT CIRCLE |
| ANNQ | MATERIAL AND LOCATION | IRON,CAST OVERALL |
| AYPQ | BRAKING SURFACE LOCATION | INTERNAL |
| AYQA | BRAKING SURFACE DIAMETER | 17.240 INCHES NOMINAL |
| AYQB | BRAKING SURFACE WIDTH | 6.500 INCHES NOMINAL |
| AYQF | COOLING FIN | NOT INCLUDED |
| AYQJ | INSPECTION HOLE | INCLUDED |
| AYQK | OIL DRAIN HOLE | NOT INCLUDED |
| AYQL | BALANCING PAD | INCLUDED |
| FEAT | SPECIAL FEATURES | 3/8-16NC-2 THD ON HOLE DRILLED FOR SCREW WHICH HOLDS COVER OVER INSPECTION HOLE |
| ZZZV | FSC APPLICATION DATA | DUAL WHEEL ASSY,CARRIAGE,GUN,155MM,M1 |
| Relevant Components for NSN - 2530-00-557-3210, 2530005573210 | ||||
| 2590-01-571-5943 (2590015715943) | 2510-01-514-4168 (2510015144168) | 2530-00-792-3224 (2530007923224) | 2510-01-165-0897 (2510011650897) | |
| 2590-01-288-3945 (2590012883945) | 2510-01-183-8327 (2510011838327) | 2520-01-675-4462 (2520016754462) | 2530-01-523-0442 (2530015230442) | |
| 2540-01-547-9930 (2540015479930) | 2541-01-600-1911 (2541016001911) | 2520-01-248-4172 (2520012484172) | 2510-01-672-0333 (2510016720333) | |
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