The Sprocket Wheel, cataloged under National Stock Number 3020-01-154-8149, 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 Raytheon Company Dba Raytheon Co. Government technical data includes 26 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-154-8149 |
| Primary Part Number | 4030778-0702 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Hub Outside Diameter | 0.500 INCHES NOMINAL AA END IN |
| First Step Diameter | 1.244 INCHES NOMINAL AA END IN |
| Securing Method | DRILLED HOLE OR THREADED HOLE(S) |
| Bore Length | 0.269 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Tooth Pitch | 0.147 INCHES NOMINAL IN |
| Outside Diameter | 1.463 INCHES NOMINAL IN |
| Second Step Length | 0.032 INCHES NOMINAL AA END IN |
| Style Designator | PLAIN |
| Material Document and Classification | QQ-S-764, TYPE 303, COND A-CANCELED FED SPEC SINGLE MATERIAL RESPONSE |
| Pitch Diameter | 1.411 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 30 |
| Protruding Hub Characteristic | STEPPED |
| Hardness Rating Test Method | NOT RATED |
| First Step Length | 0.175 INCHES NOMINAL AA END IN |
| Securing Hole Quantity | 2 OR 1 |
| Bolt Circle Diameter | 0.900 INCHES NOMINAL IN |
| Thread Size | 0.112-40 |
| Drilled Hole Diameter | 0.187 INCHES NOMINAL IN |
| Hole Location | ON SPROCKET BODY |
| Bore Diameter | 0.187 INCHES NOMINAL IN |
| Material | STEEL COMP 303 |
| Face Width | 0.062 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 |
| Part Number | Manufacturer |
|---|---|
| 4030778-0702 PRIMARY | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| 4030778 | D/9 Drawing number reference only Raytheon Company Dba Raytheon Co |
| 4030778-0702 | 5/9 Secondary reference U.S. Government activity |
NSN 3020-01-154-8149 is a Sprocket Wheel, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-154-8149 has 1 manufacturer part number on file: 4030778-0702 (Raytheon Company Dba Raytheon Co).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-366-2224. Verify interchangeability with system specifications before substitution.
Key specifications for 4030778-0702: Hub Outside Diameter: 0.500 INCHES NOMINAL AA END IN; First Step Diameter: 1.244 INCHES NOMINAL AA END IN; Securing Method: DRILLED HOLE OR THREADED HOLE(S); Bore Length: 0.269 INCHES NOMINAL IN. 26 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.