The Sprocket Wheel, cataloged under National Stock Number 3020-00-475-0489, 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. Government technical data includes 23 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-475-0489 |
| Primary Part Number | 240-1610949-8 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Raytheon Company |
| Status | ACTIVE |
| Hub Outside Diameter | 0.688 INCHES NOMINAL AA END IN |
| Securing Method | DRILLED HOLE |
| Bore Length | 0.781 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Tooth Pitch | 0.500 INCHES NOMINAL IN |
| Asa Standard Chain Number | 65 |
| Outside Diameter | 1.670 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Material Document and Classification | QQ-S-771,COMP FM,COND B FED SPEC SINGLE MATERIAL RESPONSE |
| Pitch Diameter | 1.462 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 9 |
| Protruding Hub Characteristic | PLAIN |
| Hardness Rating Test Method | NOT RATED |
| Distance From Hub End to Flange End | 0.554 INCHES NOMINAL AA END IN |
| Securing Hole Quantity | 2 |
| Drilled Hole Diameter | 0.188 INCHES NOMINAL IN |
| Hole Location | LOCATED BETWEEN HUB END AND SPROCKET FACE |
| Bore Diameter | 0.500 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Face Width | 0.227 INCHES NOMINAL IN |
| Securing Location | AA END |
| 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 |
|---|---|
| 240-1610949-8 PRIMARY | Raytheon Company (USA) |
| Reference | Meaning |
|---|---|
| 240-1610949-8 | 5/9 Secondary reference Hughes Missile Systems Co San Diego |
| 240-1610949 | D/9 Drawing number reference only Hughes Missile Systems Co San Diego |
| 240-1610949-8 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-475-0489 is a Sprocket Wheel, manufactured by Raytheon Company, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-475-0489 has 1 manufacturer part number on file: 240-1610949-8 (Raytheon Company).
Key specifications for 240-1610949-8: Hub Outside Diameter: 0.688 INCHES NOMINAL AA END IN; Securing Method: DRILLED HOLE; Bore Length: 0.781 INCHES NOMINAL IN; Design Form: PLAIN. 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.