The Gear,worm, cataloged under National Stock Number 3020-01-162-7566, 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 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-01-162-7566 |
| Primary Part Number | 70358-06616-101 |
| Item Name | Gear,worm |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Thread Form Direction | LEFT-HAND |
| Bore Nominal Diameter | 3.551 INCHES BOTH ENDS IN |
| Counterbore Nominal Diameter | 3.669 INCHES BOTH ENDS IN |
| Bore Style | W/COUNTERBORE BOTH ENDS |
| Face Type | STRAIGHT |
| Style Designator | HUBLESS |
| Material Document and Classification | QQ-M-31 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 3.8490 INCHES NOMINAL IN |
| Thread Form Quantity | 2 |
| Nominal Outside Diameter | 3.945 INCHES IN |
| Pressure Angle | 7.4998 DEGREES |
| Material | MAGNESIUM ALLOY AZ31B OVERALL |
| Counterbore Nominal Depth | 4.200 INCHES BOTH ENDS IN |
| Face Nominal Width | 4.700 INCHES IN |
| 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 |
|---|---|
| 70358-06616-101 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| 70358-06616-101 | 5/9 Secondary reference E O Manufacturing Company, Inc. |
| 70358-06616-101 | 5/9 Secondary reference Heligear Canada Acquisitioncorporationdba Northstar Aerospace Inc (milton) |
| 70358-06616 | D/9 Drawing number reference only Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
NSN 3020-01-162-7566 is a Gear,worm, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-162-7566 has 1 manufacturer part number on file: 70358-06616-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 70358-06616-101: Thread Form Direction: LEFT-HAND; Bore Nominal Diameter: 3.551 INCHES BOTH ENDS IN; Counterbore Nominal Diameter: 3.669 INCHES BOTH ENDS IN; Bore Style: W/COUNTERBORE BOTH ENDS. 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.
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.