The Pulley,timing Belt, cataloged under National Stock Number 3020-01-665-9542, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-665-9542 |
| Item Name | Pulley,timing Belt |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Hub Type | SETSCREW |
| Face Type | SINGLE ROW SPROCKET TEETH |
| Keyway Width | 0.1875 INCHES NOMINAL IN |
| Surface Treatment | PAINT |
| Bore Diameter | 0.750 INCHES MINIMUM AND 0.751 INCHES MAXIMUM 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 |
|---|---|
| 3645 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-665-9542 is a Pulley,timing Belt, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-665-9542: Hub Type: SETSCREW; Face Type: SINGLE ROW SPROCKET TEETH; Keyway Width: 0.1875 INCHES NOMINAL IN; Special Features: COLOR: TAN; HUB USES TW0 SET-SCREWS: 1/4-20UNC-2B. 5 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.