The Sprocket Wheel, cataloged under National Stock Number 3020-01-078-5596, 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22 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-078-5596 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Hub Outside Diameter | 0.450 INCHES NOMINAL AA END IN |
| Securing Method | THREADED HOLE(S) |
| Bore Length | 0.505 INCHES NOMINAL IN |
| Design Form | WEBBED |
| Tooth Pitch | 0.100 INCHES NOMINAL IN |
| Outside Diameter | 0.757 INCHES NOMINAL IN |
| Style Designator | WEBBED OR SPOKED |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 24 |
| Protruding Hub Characteristic | PLAIN |
| Hardness Rating Test Method | NOT RATED |
| Distance From Hub End to Flange End | 0.445 INCHES NOMINAL AA END IN |
| Distance From Hub End to Flange End | 0.870 INCHES NOMINAL BB END IN |
| Securing Hole Quantity | 2 |
| Thread Size | 0.138-32 |
| Surface Treatment | NICKEL |
| Hole Location | ON SPROCKET HUB 0.130 IN. FROM END IN |
| Bore Diameter | 0.250 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY |
| Face Width | 0.930 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 |
| Reference | Meaning |
|---|---|
| 128082 | D/9 Drawing number reference only U.S. Government activity |
| 128082-01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-078-5596 is a Sprocket Wheel, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6220-01-460-6982. Verify interchangeability with system specifications before substitution.
Key specifications for 3020-01-078-5596: Hub Outside Diameter: 0.450 INCHES NOMINAL AA END IN; Securing Method: THREADED HOLE(S); Bore Length: 0.505 INCHES NOMINAL IN; Design Form: WEBBED. 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.