The Brake Drum, cataloged under National Stock Number 3040-00-360-2033, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Westinghouse Electric Corp. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-360-2033 |
| Primary Part Number | N21013 |
| Item Name | Brake Drum |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Mounting Hole Quantity | 7 |
| Balancing Pad | INCLUDED |
| Mounting Hole Spacing | EQUALLY SPACED ON 16-1/2 IN. BOLT CIRCLE,EQUALLY SPACED ON 16-1/2 IN BOLT CIRCLE IN |
| Braking Surface Width | 6.063 INCHES NOMINAL IN |
| Inspection Hole | INCLUDED |
| Mounting Hole Diameter | 1.813 INCHES NOMINAL IN |
| Overall Outside Diameter | 24.063 INCHES NOMINAL IN |
| Braking Surface Location | EXTERNAL |
| Oil Drain Hole | INCLUDED |
| Center Hole Diameter | 12.500 INCHES MINIMUM AND 12.502 INCHES MAXIMUM IN |
| Braking Surface Diameter | 24.063 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Cooling Fin | INCLUDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| N21013 | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| D2-8478PC321 | 5/9 Secondary reference Usm Corp Sub of Emhart Industries Inc Farrel Co Div |
| D2-8847PC321 | 5/9 Secondary reference Usm Corp Sub of Emhart Industries Inc Farrel Co Div |
| D2-8846PC321 | 5/9 Secondary reference Usm Corp Sub of Emhart Industries Inc Farrel Co Div |
| D2-7493PC321 | 5/9 Secondary reference Usm Corp Sub of Emhart Industries Inc Farrel Co Div |
| D2-8493-321 | C/1 Advisory reference — outside the item-of-supply concept Usm Corp Sub of Emhart Industries Inc Farrel Co Div |
| D2-8493PC321 | 3/9 Design control — primary reference Usm Corp Sub of Emhart Industries Inc Farrel Co Div |
| D2-8578PC321 | 5/9 Secondary reference Usm Corp Sub of Emhart Industries Inc Farrel Co Div |
NSN 3040-00-360-2033 is a Brake Drum, manufactured by Westinghouse Electric Corp, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-360-2033 has 1 manufacturer part number on file: N21013 (Westinghouse Electric Corp).
Key specifications for N21013: Mounting Hole Quantity: 7; Balancing Pad: INCLUDED; Mounting Hole Spacing: EQUALLY SPACED ON 16-1/2 IN. BOLT CIRCLE,EQUALLY SPACED ON 16-1/2 IN BOLT CIRCLE IN; Braking Surface Width: 6.063 INCHES NOMINAL IN. 13 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.