The Gear,spur, cataloged under National Stock Number 3020-01-129-3828, 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 Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 14 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 | 3020-01-129-3828 |
| Primary Part Number | 65391-11763-041 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Teeth Quantity | 141 |
| Body Style | WEBBED, OFFSET, SOLID |
| Mounting Hole Type and Quantity | 12 PLAIN TRANSVERSELY THROUGH FLANGE |
| Precision Classification | QUALITY NUMBER 12 |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Overall Length | 6.811 INCHES IN |
| Style Designator | BELL SHAPE BODY, HUBLESS |
| Material Document and Classification | AMS 6265 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 20.1429 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Pressure Angle | 22.5000 DEGREES |
| Material | STEEL COMP E9310 OVERALL |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 4.740 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 | F |
| Part Number | Manufacturer |
|---|---|
| 65391-11763-041 | Arrow Gear Llc (USA) |
| 65391-11763-041 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 3020-01-129-3828 is a Gear,spur, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-129-3828 has 2 manufacturer part numbers on file: 65391-11763-041 (Arrow Gear Llc), 65391-11763-041 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 65391-11763-041: Teeth Quantity: 141; Body Style: WEBBED, OFFSET, SOLID; Mounting Hole Type and Quantity: 12 PLAIN TRANSVERSELY THROUGH FLANGE; Precision Classification: QUALITY NUMBER 12. 14 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 3020-01-129-3828 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.