The Sprocket Wheel, cataloged under National Stock Number 3020-00-299-2471, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 28 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-00-299-2471 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Hub Outside Diameter | 17.640 INCHES NOMINAL BOTH ENDS IN |
| Securing Method | DRILLED HOLE |
| Bore Length | 0.750 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Tooth Pitch | 1.000 INCHES NOMINAL IN |
| Asa Standard Chain Number | 80 |
| Outside Diameter | 20.640 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Material Document and Classification | QQ-S-766, CLASS 321, COND A FED SPEC SINGLE MATERIAL RESPONSE |
| Pitch Diameter | 20.062 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Counterbore Depth | 0.063 INCHES NOMINAL IN |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 63 |
| Counterbore Location | AA END |
| Protruding Hub Characteristic | PLAIN |
| Hardness Rating Test Method | NOT RATED |
| Counterbore Diameter | 5.880 INCHES NOMINAL IN |
| Distance From Hub End to Flange End | 0.088 INCHES NOMINAL BOTH ENDS IN |
| Securing Hole Quantity | 6 |
| Bolt Circle Diameter | 8.000 INCHES NOMINAL IN |
| Drilled Hole Diameter | 0.641 INCHES NOMINAL IN |
| Hole Location | ON FACE OF HUB |
| Bore Diameter | 6.005 INCHES MINIMUM AND 6.010 INCHES MAXIMUM IN |
| Material | STEEL COMP 321 |
| Furnished Items | COUNTERBORE |
| Face Width | 0.575 INCHES NOMINAL IN |
| Securing Location | BOTH ENDS |
| 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 |
|---|---|
| B1303-1-5 | C/1 Advisory reference — outside the item-of-supply concept Greerco Corp |
| 5 | 3/9 Design control — primary reference Greerco Corp |
NSN 3020-00-299-2471 is a Sprocket Wheel, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-299-2471: Hub Outside Diameter: 17.640 INCHES NOMINAL BOTH ENDS IN; Securing Method: DRILLED HOLE; Bore Length: 0.750 INCHES NOMINAL IN; Design Form: PLAIN. 28 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.