The Gear,antibacklash,worm Wheel, cataloged under National Stock Number 3020-01-289-9747, 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 Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Itw Heartland. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-01-289-9747 |
| Primary Part Number | 7-317221482 |
| Item Name | Gear,antibacklash,worm Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Itw Heartland |
| Status | ACTIVE |
| 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 |
|---|---|
| 7-317221482 PRIMARY | Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Itw Heartland (USA) |
| 7-317221482 | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| 7-317221482 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
| D-51-10608-100 | 5/9 Secondary reference Illinois Tool Wks Inc Linac Div |
| D-51-13836 | 5/9 Secondary reference Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Itw Heartland |
NSN 3020-01-289-9747 is a Gear,antibacklash,worm Wheel, manufactured by Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Itw Heartland, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-289-9747 has 2 manufacturer part numbers on file: 7-317221482 (Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Itw Heartland), 7-317221482 (The Boeing Company).
Key specifications for 7-317221482: End Item Identification: XM139. 0 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.