The Gear,spur, cataloged under National Stock Number 3020-01-341-6249, 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 Northrop Grumman Systems Corp Div Weapon System. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-01-341-6249 |
| Primary Part Number | 387-3494-1 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Northrop Grumman Systems Corp Div Weapon System |
| Status | ACTIVE |
| Bore Nominal Diameter | 12.0 MILLIMETERS BOTH ENDS MM |
| Teeth Quantity | 32 |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 67.2 MILLIMETERS MM |
| Material | STEEL COMP 4340 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 387-3494-1 | Northrop Grumman Systems Corp Div Weapon System (USA) |
| 387-3494-1 | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| 387-3494-1 | 5/9 Secondary reference Alliant Techsystems Operations Llc |
| 387-3494-1 | 3/9 Design control — primary reference Gear Supply and Broaching Inc |
NSN 3020-01-341-6249 is a Gear,spur, manufactured by Northrop Grumman Systems Corp Div Weapon System, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-341-6249 has 2 manufacturer part numbers on file: 387-3494-1 (Northrop Grumman Systems Corp Div Weapon System), 387-3494-1 (The Boeing Company).
Key specifications for 387-3494-1: Bore Nominal Diameter: 12.0 MILLIMETERS BOTH ENDS MM; Teeth Quantity: 32; Bore Style: PLAIN BOTH ENDS; Nominal Outside Diameter: 67.2 MILLIMETERS MM. 5 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.
NSN 3020-01-341-6249 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.