The Sprocket Wheel, cataloged under National Stock Number 3020-01-045-3410, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-045-3410 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Hub Outside Diameter | 1.750 INCHES NOMINAL AA END IN |
| Securing Method | KEY |
| Design Form | PLAIN |
| Teeth Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| Tooth Pitch | 0.625 INCHES NOMINAL IN |
| Asa Standard Chain Number | 50 |
| Outside Diameter | 3.718 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Metallic Hardness Rating and Location | 35.0 ROCKWELL C NOMINAL BODY |
| Material Document and Classification | MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE |
| Pitch Diameter | 3.400 INCHES NOMINAL IN |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 17 |
| Hardness Rating Test Method | ROCKWELL |
| Distance From Hub End to Flange End | 0.928 INCHES MINIMUM AND 0.933 INCHES MAXIMUM AA END IN |
| Material | STEEL COMP 4140 |
| Face Width | 0.343 INCHES MINIMUM AND 0.353 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 1721C11 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-045-3410 is a Sprocket Wheel, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-045-3410: Hub Outside Diameter: 1.750 INCHES NOMINAL AA END IN; Securing Method: KEY; Design Form: PLAIN; Teeth Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM. 17 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.
NSN 3020-01-045-3410 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.