The Sprocket Wheel, cataloged under National Stock Number 3020-01-074-8246, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-074-8246 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Hub Outside Diameter | 1.125 INCHES NOMINAL AA END IN |
| Securing Method | THREADED HOLE(S) |
| Bore Length | 0.500 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Tooth Pitch | 0.250 INCHES NOMINAL IN |
| Asa Standard Chain Number | 25 |
| Outside Diameter | 1.570 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Pitch Diameter | 1.440 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 18 |
| Protruding Hub Characteristic | PLAIN |
| Hardness Rating Test Method | NOT RATED |
| Distance From Hub End to Flange End | 0.391 INCHES NOMINAL AA END IN |
| Securing Hole Quantity | 1 |
| Thread Size | 0.190-32 |
| Hole Location | CENTERED 0.188 IN. FROM END OF HUB IN |
| Bore Diameter | 0.375 INCHES NOMINAL IN |
| Material | STEEL |
| Face Width | 0.110 INCHES NOMINAL IN |
| Furnished Items and Quantity | SETSCREW,ONE EACH |
| 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 |
|---|---|
| 6190B | 5/9 Secondary reference U.S. Government activity |
| 6190B | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| 6190B | 3/9 Design control — primary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 200114L PC402 | 5/9 Secondary reference U.S. Government activity |
| K2518 | C/1 Advisory reference — outside the item-of-supply concept Altra Industrial Motion Corp. |
| 200114L | D/9 Drawing number reference only U.S. Government activity |
NSN 3020-01-074-8246 is a Sprocket Wheel, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-074-8246: Hub Outside Diameter: 1.125 INCHES NOMINAL AA END IN; Securing Method: THREADED HOLE(S); Bore Length: 0.500 INCHES NOMINAL IN; Design Form: PLAIN. 22 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.