The Pulley,timing Belt, cataloged under National Stock Number 3020-01-248-6753, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Centofanti Marine Service Inc. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-248-6753 |
| Primary Part Number | B463-039 |
| Item Name | Pulley,timing Belt |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Centofanti Marine Service Inc |
| Status | ACTIVE |
| Hub Diameter | 1.125 INCHES NOMINAL IN |
| Face Pitch Designation | 8MM MM |
| Face Type | FLAT GROOVED |
| Bore Type | SPECIFIED |
| Face Groove/tooth Quantity | 28 |
| Surface Treatment | ANODIZE |
| Bore Diameter | 0.621 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY |
| Face Width | 0.632 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 |
| Part Number | Manufacturer |
|---|---|
| B463-039 PRIMARY | Centofanti Marine Service Inc (USA) |
| Reference | Meaning |
|---|---|
| B463-039 | 5/9 Secondary reference U.S. Government activity |
NSN 3020-01-248-6753 is a Pulley,timing Belt, manufactured by Centofanti Marine Service Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-248-6753 has 1 manufacturer part number on file: B463-039 (Centofanti Marine Service Inc).
Key specifications for B463-039: Hub Diameter: 1.125 INCHES NOMINAL IN; Face Pitch Designation: 8MM MM; Face Type: FLAT GROOVED; Overall Length: 0.882 INCHES NOMINAL IN. 9 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.