The Gear,spur, cataloged under National Stock Number 3020-00-862-7012, 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 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-862-7012 |
| Primary Part Number | RGR416EJ |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Siemens Energy, Inc. |
| Status | ACTIVE |
| Hub Nominal Diameter | 2.1250 INCHES BETWEEN BODY AND FLANGE IN |
| Teeth Quantity | 49 |
| Body Style | PLAIN, SOLID |
| Flange Nominal Thickness | 0.750 INCHES IN |
| Flange Nominal Diameter | 5.251 INCHES IN |
| Mounting Hole Type and Quantity | 4 COUNTERSUNK AXIALLY THROUGH FLANGE |
| Mounting Hole Nominal Diameter | 0.562 INCHES AXIALLY THROUGH FLANGE IN |
| Hardness Rating | 150.0 BRINELL STANDARD MINIMUM AND 200.0 BRINELL STANDARD MAXIMUM OVERALL |
| Style Designator | FLANGED END |
| Material Document and Classification | MIL-S-16974 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.4500 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Distance Between Outer Body Face and Inner Flange Face | 2.750 INCHES IN |
| Nominal Outside Diameter | 2.550 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 1030 OVERALL |
| Bolt Hole Circle Nominal Diameter | 3.750 INCHES AXIALLY THROUGH FLANGE IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 1.000 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 |
NSN 3020-00-862-7012 is a Gear,spur, manufactured by Siemens Energy, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-862-7012 has 2 manufacturer part numbers on file: H2305PC7 (Siemens Energy, Inc.), RGR416EJ (Siemens Energy, Inc.).
Key specifications for RGR416EJ: Hub Nominal Diameter: 2.1250 INCHES BETWEEN BODY AND FLANGE IN; Teeth Quantity: 49; Body Style: PLAIN, SOLID; Flange Nominal Thickness: 0.750 INCHES IN. 19 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.