The Gear,helical, cataloged under National Stock Number 3020-00-276-7285, 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 Siemens Energy, Inc.. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-276-7285 |
| Primary Part Number | LC264A |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Siemens Energy, Inc. |
| Status | ACTIVE |
| Keyway Nominal Width | 0.313 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 1.768 INCHES BOTH ENDS IN |
| Helix Angle | 45.9833 DEGREES |
| Teeth Quantity | 27 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | LEFT |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Teeth Type | SINGLE HELIX |
| Style Designator | HUBLESS |
| Pitch Diameter | 5.4965 INCHES NOMINAL IN |
| Nominal Outside Diameter | 5.7790 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 1.040 INCHES BOTH ENDS IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | COPPER ALLOY OVERALL |
| Face Nominal Width | 1.750 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 |
|---|---|
| LC264A PRIMARY | Siemens Energy, Inc. (USA) |
| G8953G7055PC264-1 PRIMARY | Siemens Energy, Inc. (USA) |
| G7055PC264A PRIMARY | Siemens Energy, Inc. (USA) |
| C27939 PRIMARY | Siemens Energy, Inc. (USA) |
NSN 3020-00-276-7285 is a Gear,helical, manufactured by Siemens Energy, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-276-7285 has 4 manufacturer part numbers on file: LC264A (Siemens Energy, Inc.), G8953G7055PC264-1 (Siemens Energy, Inc.), G7055PC264A (Siemens Energy, Inc.), C27939 (Siemens Energy, Inc.).
Key specifications for LC264A: Keyway Nominal Width: 0.313 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.768 INCHES BOTH ENDS IN; Helix Angle: 45.9833 DEGREES; Teeth Quantity: 27. 15 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.