The Sprocket Wheel, cataloged under National Stock Number 3020-01-386-8074, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Altra Industrial Motion Corp.. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-386-8074 |
| Primary Part Number | 40B12TI-8 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Altra Industrial Motion Corp. |
| Status | ACTIVE |
| Design Form | PLAIN |
| Tooth Pitch | 0.500 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 12 |
| Protruding Hub Characteristic | PLAIN |
| Bore Diameter | 0.500 INCHES NOMINAL IN |
| Material | STEEL |
| 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 |
|---|---|
| 40B12TI-8 PRIMARY | Altra Industrial Motion Corp. (USA) |
| 40B12TI-1/2 | Altra Industrial Motion Corp. (USA) |
| Reference | Meaning |
|---|---|
| 40B12TI | 5/9 Secondary reference Altra Industrial Motion Corp. |
| 40B12TI | 5/9 Secondary reference Detroit Ball Bearing Co of Michigan |
| 40B12T1 | 5/9 Secondary reference Detroit Ball Bearing Co of Michigan |
NSN 3020-01-386-8074 is a Sprocket Wheel, manufactured by Altra Industrial Motion Corp., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-386-8074 has 2 manufacturer part numbers on file: 40B12TI-8 (Altra Industrial Motion Corp.), 40B12TI-1/2 (Altra Industrial Motion Corp.).
Key specifications for 40B12TI-8: Design Form: PLAIN; Tooth Pitch: 0.500 INCHES NOMINAL IN; Style Designator: PLAIN; Bore Type: STRAIGHT. 9 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.