The Sprocket Wheel, cataloged under National Stock Number 3020-01-421-4701, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-421-4701 |
| Primary Part Number | 35B8SS-0.375 |
| 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 | 0.750 INCHES NOMINAL BB END IN |
| Bore Length | 0.750 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Tooth Pitch | 0.375 INCHES NOMINAL IN |
| Asa Standard Chain Number | 35 |
| Outside Diameter | 1.120 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Pitch Diameter | 0.980 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 8 |
| Protruding Hub Characteristic | PLAIN |
| Hardness Rating Test Method | NOT RATED |
| Distance From Hub End to Flange End | 0.578 INCHES NOMINAL BB END IN |
| Bore Diameter | 0.375 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Face Width | 0.168 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 |
|---|---|
| 35B8SS-0.375 PRIMARY | Emerson Electric Co Browning Mfg Div (USA) |
| Reference | Meaning |
|---|---|
| 35B8SS-0.375 | 5/9 Secondary reference Cullman Wheel Co |
| 50171000 ITEM 19 | 5/9 Secondary reference U.S. Government activity |
| 50171000 ITEM 19 | 5/9 Secondary reference Gulf Coast Holdings, Inc Dba Unidynamics |
| PL50271000 ITEM 19 | 5/9 Secondary reference Gulf Coast Holdings, Inc Dba Unidynamics |
| PL50271000 ITEM 19 | 5/9 Secondary reference U.S. Government activity |
| 35B8SS-0.375 | 5/9 Secondary reference Martin Sprocket and Gear Inc |
| PL50271000 ITEM 19 | 5/2 Secondary reference U.S. Government activity |
| 50171000 ITEM 19 | 5/2 Secondary reference U.S. Government activity |
NSN 3020-01-421-4701 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 3020-01-421-4701 has 1 manufacturer part number on file: 35B8SS-0.375 (Emerson Electric Co Browning Mfg Div).
Key specifications for 35B8SS-0.375: Hub Outside Diameter: 0.750 INCHES NOMINAL BB END IN; Bore Length: 0.750 INCHES NOMINAL IN; Design Form: PLAIN; Tooth Pitch: 0.375 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.