The Sprocket Wheel, cataloged under National Stock Number 3020-00-042-9852, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-042-9852 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Hub Outside Diameter | 1.000 INCHES NOMINAL BOTH ENDS IN |
| Securing Method | THREADED HOLE(S) |
| Bore Length | 0.500 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Lubrication Mode | NO VISIBLE MEANS |
| Tooth Pitch | 0.188 INCHES NOMINAL IN |
| Outside Diameter | 1.429 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Pitch Diameter | 1.377 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 23 |
| Distance From Hub End to Flange End | 0.362 INCHES NOMINAL BOTH ENDS IN |
| Securing Hole Quantity | 2 |
| Thread Size | 0.164 IN.-32 THD SIZE IN |
| Surface Treatment | PHOSPHATE |
| Hole Location | ON TOP OF HUB AND 90 DEG FROM TOP OF HUB |
| Bore Diameter | 0.500 INCHES NOMINAL IN |
| Material | STEEL |
| Face Width | 0.138 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 |
| Reference | Meaning |
|---|---|
| 5S3 | 5/9 Secondary reference Hewlett-Packard Co Waltham Div |
| 1430-0455 | 3/9 Design control — primary reference Arch Gear Works Inc |
NSN 3020-00-042-9852 is a Sprocket Wheel, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5325-00-951-3265, 4030-01-377-5201. Verify interchangeability with system specifications before substitution.
Key specifications for 3020-00-042-9852: Hub Outside Diameter: 1.000 INCHES NOMINAL BOTH ENDS IN; Securing Method: THREADED HOLE(S); Bore Length: 0.500 INCHES NOMINAL IN; Design Form: PLAIN. 20 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.