The Gear Set,spur,matched, cataloged under National Stock Number 3020-01-643-5178, 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 Naval Inventory Control Point Mechanicsburg. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Gear Set,spur,matched |
| FSC / FSG | 3020 — Gears, Pulleys, Sprockets, and Transmission Chain (FSG 30) |
| Manufacturers | Naval Inventory Control Point Mechanicsburg (CAGE 03950) |
| Parameter | Value |
|---|---|
| NSN | 3020-01-643-5178 |
| Primary Part Number | 2642-343-01 REF 2 ITEM NO 2,3D4 |
| Item Name | Gear Set,spur,matched |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 2642-343-01 REF 2 ITEM NO 2,3D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 845-4558716 REF 2 ITEM NO 2,3D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 845-2050583 PC 2,3D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 2640-343X2 PC 2,3D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 7383858-2640343X02-2,3D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| H574-0001-2640343X02-2,3D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 2642-343-01 REF 2 ITEM NO 2,3 | 5/1 Secondary reference U.S. Government activity |
| 7383858-2640343X02-2,3 | 3/1 Design control — primary reference Naval Sea Systems Command |
| 845-4558716 REF 2 ITEM NO 2,3 | 5/1 Secondary reference U.S. Government activity |
| 2640-343X2 PC 2,3 | 5/1 Secondary reference U.S. Government activity |
| H574-0001-2640343X02-2,3 | 5/1 Secondary reference U.S. Government activity |
| 845-2050583 PC 2,3 | 5/1 Secondary reference U.S. Government activity |
NSN 3020-01-643-5178 is a Gear Set,spur,matched, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-643-5178 has 6 manufacturer part numbers on file: 2642-343-01 REF 2 ITEM NO 2,3D4 (Naval Inventory Control Point Mechanicsburg), 845-4558716 REF 2 ITEM NO 2,3D4 (Naval Inventory Control Point Mechanicsburg), 845-2050583 PC 2,3D4 (Naval Inventory Control Point Mechanicsburg), 2640-343X2 PC 2,3D4 (Naval Inventory Control Point Mechanicsburg), 7383858-2640343X02-2,3D4 (Naval Inventory Control Point Mechanicsburg) and 1 more.
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.