The Gear Cluster, cataloged under National Stock Number 3020-00-906-0337, 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 L3harris Technologies, Inc.. Government technical data includes 20 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-906-0337 |
| Primary Part Number | 2154987 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | L3harris Technologies, Inc. |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.250 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.594 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Backlash Designation | GRADE D ALL GEARS |
| Surface Treatment Document and Classification | MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Design Type | SPUR SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Bore Style | PLAIN BOTH ENDS |
| Precision Classification | QUALITY NUMBER 6 OR QUALITY NUMBER 7 ALL GEARS |
| Nominal Overall Length | 1.063 INCHES IN |
| Material Document and Classification | AISI 303 ASSN STD SINGLE MATERIAL RESPONSE SECOND GEAR |
| Material Document and Classification | MIL-N-994,COMP B MIL SPEC SINGLE MATERIAL RESPONSE FIRST GEAR |
| Hub Style Designator | PLAIN BETWEEN FIRST AND SECOND GEAR |
| Hub Nominal Length | 0.688 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Nominal Outside Diameter | 0.811 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 3.040 INCHES FIRST GEAR IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 303 SECOND GEAR |
| Material | COPPER ALLOY 482 FIRST GEAR |
| Construction | ASSEMBLED |
| Attachment Method | MOUNTING HOLE |
| 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 |
|---|---|
| 2154987 PRIMARY | L3harris Technologies, Inc. (USA) |
NSN 3020-00-906-0337 is a Gear Cluster, manufactured by L3harris Technologies, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-906-0337 has 1 manufacturer part number on file: 2154987 (L3harris Technologies, Inc.).
Key specifications for 2154987: Bore Nominal Diameter: 0.250 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.594 INCHES BETWEEN FIRST AND SECOND GEAR IN; Backlash Designation: GRADE D ALL GEARS; Surface Treatment Document and Classification: MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 20 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.