The Pulley,timing Belt, cataloged under National Stock Number 3020-01-437-8768, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-437-8768 |
| Primary Part Number | 7C9-05239 |
| 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 | 14MM MM |
| Face Type | FLAT GROOVED WITH DOUBLE FLANGE |
| Bore Type | TAPERED |
| Face Groove/tooth Quantity | 40 |
| Surface Treatment | NICKEL |
| Bore Diameter | 3.125 INCHES NOMINAL IN |
| Material | IRON CAST OR STEEL |
| Face Width | 2.440 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 |
|---|---|
| 7C9-05239 PRIMARY | Lake Shore Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| P40-14M-55 | C/1 Advisory reference — outside the item-of-supply concept Gates Corporation |
| P40-14M-55 TYPE AJF | 5/1 Secondary reference Gates Corporation |
| B4014M55 TYPE D1F | 5/1 Secondary reference Emerson Electric Co Browning Mfg Div |
NSN 3020-01-437-8768 is a Pulley,timing Belt, manufactured by Lake Shore Systems, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-437-8768 has 1 manufacturer part number on file: 7C9-05239 (Lake Shore Systems, Inc.).
Key specifications for 7C9-05239: Face Pitch Designation: 14MM MM; Face Type: FLAT GROOVED WITH DOUBLE FLANGE; Overall Length: 2.750 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.