The Sprocket Wheel, cataloged under National Stock Number 3020-01-034-8714, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-034-8714 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Hub Outside Diameter | 1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM BOTH ENDS IN |
| Bore Length | 1.088 INCHES MINIMUM AND 1.093 INCHES MAXIMUM IN |
| Design Form | PLAIN |
| Teeth Hardness Rating | 25.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM |
| Tooth Pitch | 0.250 INCHES NOMINAL IN |
| Asa Standard Chain Number | 25 |
| Outside Diameter | 3.725 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Metallic Hardness Rating and Location | 25.0 ROCKWELL C MINIMUM HUB AND 30.0 ROCKWELL C MAXIMUM HUB |
| Material Document and Classification | MIL-S-5626, COMP 4140 MIL SPEC SINGLE MATERIAL RESPONSE |
| Pitch Diameter | 3.584 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 45 |
| Protruding Hub Characteristic | PLAIN |
| Hardness Rating Test Method | ROCKWELL |
| Distance From Hub End to Flange End | 0.304 INCHES MINIMUM AND 0.317 INCHES MAXIMUM BOTH ENDS IN |
| Surface Treatment | CADMIUM |
| Bore Diameter | 1.312 INCHES MINIMUM AND 1.313 INCHES MAXIMUM IN |
| Material | STEEL COMP 4140 |
| Face Width | 0.103 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 44064-30 | 3/9 Design control — primary reference Goodrich Corporation Dba Trw Lucas Aerospace |
| 44064D30 | 5/9 Secondary reference U.S. Government activity |
NSN 3020-01-034-8714 is a Sprocket Wheel, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-034-8714: Hub Outside Diameter: 1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM BOTH ENDS IN; Bore Length: 1.088 INCHES MINIMUM AND 1.093 INCHES MAXIMUM IN; Design Form: PLAIN; Teeth Hardness Rating: 25.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM. 21 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.