The Sprocket Wheel, cataloged under National Stock Number 3020-01-450-8424, 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 The Entwistle Company Llc. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-450-8424 |
| Primary Part Number | 9310C4539-001 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | The Entwistle Company Llc |
| Status | ACTIVE |
| Design Form | PLAIN |
| Tooth Pitch | 0.620 INCHES NOMINAL IN |
| Outside Diameter | 3.720 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Pitch Diameter | 3.400 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 17 |
| Protruding Hub Characteristic | STEPPED |
| Bore Diameter | 0.638 INCHES NOMINAL IN |
| Face Width | 0.340 INCHES NOMINAL IN |
| 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 |
|---|---|
| 9310C4539-001 | The Entwistle Company Llc (USA) |
| Reference | Meaning |
|---|---|
| 50BB17H | 3/9 Design control — primary reference Centis, Inc Dba Century Business Solutions/photo Products Div Institutional and Corporate Sales |
| 5OBB17H | 5/9 Secondary reference Martin Sprocket and Gear Inc |
NSN 3020-01-450-8424 is a Sprocket Wheel, manufactured by The Entwistle Company Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-450-8424 has 1 manufacturer part number on file: 9310C4539-001 (The Entwistle Company Llc).
Key specifications for 9310C4539-001: Design Form: PLAIN; Tooth Pitch: 0.620 INCHES NOMINAL IN; Outside Diameter: 3.720 INCHES NOMINAL IN; Style Designator: PLAIN. 11 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.