The Gear,helical, cataloged under National Stock Number 3020-00-962-8467, 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 18 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 | 3020-00-962-8467 |
| Primary Part Number | RGR416EK |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Siemens Energy, Inc. |
| Status | ACTIVE |
| Keyway Nominal Width | 0.501 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 1.875 INCHES BOTH ENDS IN |
| Helix Angle | 9.4954 DEGREES |
| Teeth Quantity | 56 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | RIGHT |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Teeth Type | SINGLE HELIX |
| Hardness Rating | 260.0 ROCKWELL SUPERFICIAL 15-N MINIMUM OVERALL |
| Style Designator | HUBLESS |
| Material Document and Classification | MIL-S-890,ALLOY NO. 2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 5.8140 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 6.017 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 1.130 INCHES BOTH ENDS IN |
| Material | STEEL OVERALL |
| Attachment Method | MOUNTING HOLE |
| 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 |
|---|---|
| RGR416EK PRIMARY | Siemens Energy, Inc. (USA) |
| B54568PC83 | Siemens Energy, Inc. (USA) |
NSN 3020-00-962-8467 is a Gear,helical, manufactured by Siemens Energy, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-962-8467 has 2 manufacturer part numbers on file: RGR416EK (Siemens Energy, Inc.), B54568PC83 (Siemens Energy, Inc.).
Key specifications for RGR416EK: Keyway Nominal Width: 0.501 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.875 INCHES BOTH ENDS IN; Helix Angle: 9.4954 DEGREES; Teeth Quantity: 56. 18 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.