| Item Name | Brake Drum |
| INC Code | 11298 |
| Federal Supply Group (FSG) | Mechanical Power Transmission Equipment |
| Federal Supply Class (FSC) | 3040 Miscellaneous Power Transmission Equipment |
| National Item Identification Number (NIIN) | 01-067-3855 (010673855) |
| NCB Code | USA (01) |
| Manufacturer | Cooper Industries Inc, Level 10 Industries Inc, Tool House Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABMK | OVERALL WIDTH | 1.257 INCHES NOMINAL |
| ABTB | MOUNTING HOLE DIAMETER | 0.312 INCHES NOMINAL |
| ABTJ | MOUNTING HOLE QUANTITY | 2 |
| ADGA | OVERALL OUTSIDE DIAMETER | 4.062 INCHES NOMINAL |
| ADYT | CENTER HOLE DIAMETER | 0.365 INCHES NOMINAL |
| ALXY | MOUNTING HOLE SPACING | EQUALLY SPACED ON 2.375 IN. BOLT CIRCLE |
| ANNQ | MATERIAL AND LOCATION | STEEL OVERALL |
| AYPQ | BRAKING SURFACE LOCATION | EXTERNAL |
| AYQA | BRAKING SURFACE DIAMETER | 4.062 INCHES NOMINAL |
| AYQB | BRAKING SURFACE WIDTH | 1.257 INCHES NOMINAL |
| 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 |
| FEAT | SPECIAL FEATURES | MTG HOLES THD 0.312-18 UNC 2B RH THD;ONE END OF CENTER HOLE HEX SHAPE0.320 IN. ACROSS FLATS |
| Relevant Components for NSN - 3040-01-067-3855, 3040010673855 | ||||
| 3040-01-163-3240 (3040011633240) | 3040-00-454-5891 (3040004545891) | 3040-00-752-1655 (3040007521655) | 3040-01-524-6801 (3040015246801) | |
| 3040-00-402-6957 (3040004026957) | 3040-01-628-1622 (3040016281622) | 3040-01-330-4993 (3040013304993) | 3040-00-966-7587 (3040009667587) | |
| 3040-01-371-7751 (3040013717751) | 3040-01-676-1040 (3040016761040) | 3040-00-469-4229 (3040004694229) | 3040-01-438-8179 (3040014388179) | |
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