The Gear Cluster, cataloged under National Stock Number 3020-01-440-5459, 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 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-01-440-5459 |
| Primary Part Number | 465-4099 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Northrop Grumman Systems Corp Div Weapon System |
| Status | ACTIVE |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 465-4099 PRIMARY | Northrop Grumman Systems Corp Div Weapon System (USA) |
| Reference | Meaning |
|---|---|
| 465-4099 | 3/9 Design control — primary reference Alliant Techsystems Operations Llc |
| 465-4099 | 5/9 Secondary reference The Boeing Company |
| 465-4099 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
NSN 3020-01-440-5459 is a Gear Cluster, manufactured by Northrop Grumman Systems Corp Div Weapon System, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-440-5459 has 1 manufacturer part number on file: 465-4099 (Northrop Grumman Systems Corp Div Weapon System).
Key specifications for 465-4099: Special Features: OVERALL DIA. 87.6 MM; HEIGHT 163.4 MM MM; Material: STEEL OVERALL. 1 specification is 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.