The Pulley,groove, cataloged under National Stock Number 3020-01-679-6233, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-679-6233 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Hub Outside Diameter | 0.525 INCHES MINIMUM AND 0.535 INCHES MAXIMUM BOTH ENDS IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE II,CLASS 1 FED SPEC SINGLE TREATMENT RESPONSE |
| Design Form | GROOVED |
| Groove Radius | 0.135 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Groove Shape | U |
| Outside Diameter | 2.625 INCHES NOMINAL IN |
| Groove Quantity | 2 |
| Drilled Hole Diameter | 0.8740 INCHES MINIMUM AND 0.8744 INCHES MAXIMUM IN |
| Unable to Decode | UNABLE TO DECODE AND UNABLE TO DECODE |
| Surface Treatment | CADMIUM AND CHROMATE |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 420667-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-679-6233 is a Pulley,groove, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-679-6233: Hub Outside Diameter: 0.525 INCHES MINIMUM AND 0.535 INCHES MAXIMUM BOTH ENDS IN; Surface Treatment Document and Classification: QQ-P-416,TYPE II,CLASS 1 FED SPEC SINGLE TREATMENT RESPONSE; Design Form: GROOVED; Groove Radius: 0.135 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN. 11 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.