The Gear,spur, cataloged under National Stock Number 3020-01-089-2770, 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 Heligear Canada Acquisitioncorporationdba Northstar Aerospace Inc (milton). Government technical data includes 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-089-2770 |
| Primary Part Number | 70351-08177-102 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Heligear Canada Acquisitioncorporationdba Northstar Aerospace Inc (milton) |
| Status | ACTIVE |
| Teeth Quantity | 228 |
| Body Style | PLAIN, SOLID |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Overall Length | 2.380 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | AMS 6265 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 25.74235 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Material | STEEL COMP E9310 OVERALL |
| Face Nominal Width | 0.500 INCHES IN |
| 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 |
|---|---|
| 70351-08177-102 PRIMARY | Heligear Canada Acquisitioncorporationdba Northstar Aerospace Inc (milton) (CAN) |
| 70351-08177-102 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 3020-01-089-2770 is a Gear,spur, manufactured by Heligear Canada Acquisitioncorporationdba Northstar Aerospace Inc (milton), classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-089-2770 has 2 manufacturer part numbers on file: 70351-08177-102 (Heligear Canada Acquisitioncorporationdba Northstar Aerospace Inc (milton)), 70351-08177-102 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 70351-08177-102: Teeth Quantity: 228; Body Style: PLAIN, SOLID; Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL; Nominal Overall Length: 2.380 INCHES IN. 11 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 3020-01-089-2770 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.