The Sprocket Wheel, cataloged under National Stock Number 3020-00-033-2109, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 23 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-033-2109 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Spline Minor Diameter | 1.933 INCHES MINIMUM AND 1.933 INCHES MINIMUM AND 1.935 INCHES MAXIMUM1.935 INCHES MAXIMUM IN |
| Hub Outside Diameter | 2.750 INCHES NOMINAL BOTH ENDS IN |
| Design Form | PLAIN |
| Teeth Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM |
| Tooth Pitch | 0.500 INCHES NOMINAL IN |
| Asa Standard Chain Number | H-40 |
| Outside Diameter | 5.205 INCHES MINIMUM AND 5.205 INCHES MINIMUM AND 5.221 INCHES MAXIMUM5.221 INCHES MAXIMUM IN |
| Spline Length | 1.872 INCHES MINIMUM AND 1.878 INCHES MAXIMUM IN |
| Style Designator | PLAIN |
| Metallic Hardness Rating and Location | 35.0 ROCKWELL C MINIMUM HUB AND 50.0 ROCKWELL C MAXIMUM HUB |
| Material Document and Classification | AISI 1020 ASSN STD SINGLE MATERIAL RESPONSE |
| Pitch Diameter | 4.359 INCHES MINIMUM AND 4.359 INCHES MINIMUM AND 4.375 INCHES MAXIMUM4.375 INCHES MAXIMUM IN |
| Spline Major Diameter | 2.248 INCHES MINIMUM AND 2.248 INCHES MINIMUM AND 2.250 INCHES MAXIMUM2.250 INCHES MAXIMUM IN |
| Bore Type | STRAIGHT SPLINE |
| Teeth Row Quantity | 3 |
| Teeth Quantity Per Row | 31 |
| Protruding Hub Characteristic | PLAIN |
| Hardness Rating Test Method | ROCKWELL |
| Spline Quantity | 1010 |
| Distance From Hub End to Flange End | 0.232 INCHES MINIMUM AND 0.240 INCHES MAXIMUM BOTH ENDS IN |
| Center to Center Distance Between Teeth Rows | 0.558 INCHES MINIMUM AND 0.568 INCHES MAXIMUM IN |
| Material | STEEL COMP 1020 |
| Face Width | 1.398 INCHES MINIMUM AND 1.407 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 |
|---|---|
| 01700-0290 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3020-00-033-2109 is a Sprocket Wheel, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-033-2109: Spline Minor Diameter: 1.933 INCHES MINIMUM AND 1.933 INCHES MINIMUM AND 1.935 INCHES MAXIMUM1.935 INCHES MAXIMUM IN; Hub Outside Diameter: 2.750 INCHES NOMINAL BOTH ENDS IN; Design Form: PLAIN; Teeth Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM. 23 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.