The Gear Cluster, cataloged under National Stock Number 3020-00-055-8554, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-055-8554 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.094 INCHES BOTH ENDS IN |
| Design Type | SPUR SECOND GEAR |
| Design Type | HELICAL FIRST GEAR |
| Bore Style | PLAIN BOTH ENDS |
| Precision Classification | QUALITY NUMBER 10 OR QUALITY NUMBER 11 ALL GEARS |
| Nominal Overall Length | 0.2675 INCHES IN |
| Criticality Code Justification | FEAT |
| Material Document and Classification | L-P-392,TYPE 2,CLASS 1 FED SPEC SINGLE MATERIAL RESPONSE FIRST GEAR |
| Material Document and Classification | QQ-B-679,COMP 1 FED SPEC SINGLE MATERIAL RESPONSE SECOND GEAR |
| Material Document and Classification | QQ-B-679,COMP 1 FED SPEC SINGLE MATERIAL RESPONSE SHAFT/HUB |
| Nominal Outside Diameter | 0.361 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 0.8623 INCHES FIRST GEAR IN |
| Material | COPPER ALLOY 642 SECOND GEAR |
| Material | COPPER ALLOY 642 SHAFT/HUB |
| Material | PLASTIC ACETAL FIRST GEAR |
| Construction | ASSEMBLED |
| Attachment Method | MOUNTING HOLE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| 139008-01 | 5/9 Secondary reference Carbonara Labs Inc |
| 139008-01 | 5/9 Secondary reference Ge Aviation Systems Llc |
| 139008-01 | 3/9 Design control — primary reference Ge Aviation Systems Llc Dba Ge Aviation |
NSN 3020-00-055-8554 is a Gear Cluster, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-055-8554: Bore Nominal Diameter: 0.094 INCHES BOTH ENDS IN; Design Type: SPUR SECOND GEAR; Design Type: HELICAL FIRST GEAR; Bore Style: PLAIN BOTH ENDS. 17 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.
NSN 3020-00-055-8554 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.