The Gear,antibacklash,spur, cataloged under National Stock Number 3020-01-182-9563, 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 The Boeing Company. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-182-9563 |
| Primary Part Number | 7-317221351 |
| Item Name | Gear,antibacklash,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 2.7500 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2024 TEETH |
| Material | STEEL COMP 303 HUB |
| 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 |
|---|---|
| 7-317221351 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| 7-317221351 | 3/9 Design control — primary reference Mcdonnell Douglas Helicopter Co Inc |
NSN 3020-01-182-9563 is a Gear,antibacklash,spur, manufactured by The Boeing Company, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-182-9563 has 1 manufacturer part number on file: 7-317221351 (The Boeing Company).
Key specifications for 7-317221351: Style Designator: PROTRUDING HUB; Pitch Diameter: 2.7500 INCHES NOMINAL IN; Material: ALUMINUM ALLOY 2024 TEETH; Material: STEEL COMP 303 HUB. 4 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 3020-01-182-9563 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.