The Sprocket Wheel, cataloged under National Stock Number 3020-01-213-9640, 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 Emerson Electric Co Browning Mfg Div. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 3020-01-213-9640 |
| Primary Part Number | 80B11 3/4IN.BORE |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Emerson Electric Co Browning Mfg Div |
| Status | ACTIVE |
| Hub Outside Diameter | 2.500 INCHES NOMINAL AA END IN |
| Bore Length | 1.375 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Tooth Pitch | 1.000 INCHES NOMINAL IN |
| Asa Standard Chain Number | 80 |
| Outside Diameter | 4.010 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Pitch Diameter | 3.550 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 11 |
| Protruding Hub Characteristic | PLAIN |
| Hardness Rating Test Method | NOT RATED |
| Distance From Hub End to Flange End | 0.812 INCHES NOMINAL AA END IN |
| Bore Diameter | 0.750 INCHES NOMINAL IN |
| Material | STEEL |
| Face Width | 0.575 INCHES NOMINAL 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 |
|---|---|
| 80B11 3/4IN.BORE PRIMARY | Emerson Electric Co Browning Mfg Div (USA) |
| 80B11 | Emerson Electric Co Browning Mfg Div (USA) |
NSN 3020-01-213-9640 is a Sprocket Wheel, manufactured by Emerson Electric Co Browning Mfg Div, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-213-9640 has 2 manufacturer part numbers on file: 80B11 3/4IN.BORE (Emerson Electric Co Browning Mfg Div), 80B11 (Emerson Electric Co Browning Mfg Div).
1 possible match (shared part number, not a government interchangeability claim): 3020-01-551-2737. Verify interchangeability with system specifications before substitution.
Key specifications for 80B11 3/4IN.BORE: Hub Outside Diameter: 2.500 INCHES NOMINAL AA END IN; Bore Length: 1.375 INCHES NOMINAL IN; Design Form: PLAIN; Tooth Pitch: 1.000 INCHES NOMINAL IN. 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.
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.