The Pulley,timing Belt, cataloged under National Stock Number 3020-01-437-8766, 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 Lake Shore Systems, Inc.. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-437-8766 |
| Primary Part Number | 7C9-05242 |
| Item Name | Pulley,timing Belt |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Lake Shore Systems, Inc. |
| Status | ACTIVE |
| Face Pitch Designation | L |
| Face Type | FLAT GROOVED WITH DOUBLE FLANGE |
| Bore Type | TAPERED |
| Face Groove/tooth Quantity | 18 |
| Surface Treatment | NICKEL |
| Bore Diameter | 1.260 INCHES MINIMUM AND 1.386 INCHES MAXIMUM IN |
| Material | STEEL |
| Face Width | 1.060 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 |
|---|---|
| 7C9-05242 PRIMARY | Lake Shore Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| TB18L100 TYPE KF-1 | 5/9 Secondary reference Centis, Inc Dba Century Business Solutions/photo Products Div Institutional and Corporate Sales |
| TL18L100 TYPE K1F | 5/1 Secondary reference Gates Corporation |
NSN 3020-01-437-8766 is a Pulley,timing Belt, manufactured by Lake Shore Systems, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-437-8766 has 1 manufacturer part number on file: 7C9-05242 (Lake Shore Systems, Inc.).
Key specifications for 7C9-05242: Face Pitch Designation: L; Face Type: FLAT GROOVED WITH DOUBLE FLANGE; Overall Length: 1.250 INCHES NOMINAL IN; Bore Type: TAPERED. 8 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.