The Gear,spur, cataloged under National Stock Number 3020-00-580-0747, 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 Cummins Power Generation Inc.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-580-0747 |
| Primary Part Number | 134-0673 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Cummins Power Generation Inc. |
| Status | ACTIVE |
| Bore Nominal Diameter | 11.929 INCHES BOTH ENDS IN |
| Teeth Quantity | 102 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Hardness Rating | 47.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM TEETH |
| Style Designator | HUBLESS |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 1050 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 12.7500 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 12.940 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 1050 OVERALL |
| Face Nominal Width | 0.347 INCHES 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 |
|---|---|
| 134-0673 PRIMARY | Cummins Power Generation Inc. (USA) |
| Reference | Meaning |
|---|---|
| 134C673 | 5/9 Secondary reference Cummins Power Generation Inc. |
| 134-673 | 5/9 Secondary reference Cummins Power Generation Inc. |
NSN 3020-00-580-0747 is a Gear,spur, manufactured by Cummins Power Generation Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-580-0747 has 1 manufacturer part number on file: 134-0673 (Cummins Power Generation Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5306-01-543-6655. Verify interchangeability with system specifications before substitution.
Key specifications for 134-0673: Bore Nominal Diameter: 11.929 INCHES BOTH ENDS IN; Teeth Quantity: 102; Body Style: PLAIN, SOLID; Bore Style: PLAIN BOTH ENDS. 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.