The Gear Cluster, cataloged under National Stock Number 3020-00-607-9506, 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 Div Space & Airborne Systems. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-607-9506 |
| Primary Part Number | 81014 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | L3harris Technologies, Inc Div Space & Airborne Systems |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.251 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.750 INCHES FIRST END IN |
| Hub Nominal Diameter | 0.406 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Counterbore Nominal Diameter | 0.5000 INCHES FIRST END IN |
| Design Type | SPUR SECOND GEAR |
| Design Type | HELICAL FIRST GEAR |
| Bore Style | W/COUNTERBORE FIRST END |
| Nominal Overall Length | 0.623 INCHES IN |
| Material Document and Classification | QQ-B-750 COMP A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Hub Style Designator | PLAIN BETWEEN FIRST AND SECOND GEAR |
| Hub Style Designator | PLAIN FIRST END |
| Hub Nominal Length | 0.160 INCHES FIRST END IN |
| Hub Nominal Length | 0.089 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Nominal Outside Diameter | 0.5200 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 1.2190 INCHES FIRST GEAR IN |
| Material | COPPER ALLOY OVERALL |
| Counterbore Nominal Depth | 0.160 INCHES FIRST END IN |
| Construction | SOLID |
| 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 |
|---|---|
| 81014 | Schafer Industries, Inc. Dba Schafer Industries Inc (USA) |
| 81014 PRIMARY | L3harris Technologies, Inc Div Space & Airborne Systems (USA) |
| Reference | Meaning |
|---|---|
| 81014 | 5/9 Secondary reference Reese Manufacturing Inc |
| 81014 | 5/2 Secondary reference U.S. Government activity |
NSN 3020-00-607-9506 is a Gear Cluster, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-607-9506 has 2 manufacturer part numbers on file: 81014 (Schafer Industries, Inc. Dba Schafer Industries Inc), 81014 (L3harris Technologies, Inc Div Space & Airborne Systems).
4 possible matches (shared part number, not a government interchangeability claim): 5905-00-644-9477, 5310-00-680-5239, 6635-01-066-3145. Verify interchangeability with system specifications before substitution.
Key specifications for 81014: Bore Nominal Diameter: 0.251 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.750 INCHES FIRST END IN; Hub Nominal Diameter: 0.406 INCHES BETWEEN FIRST AND SECOND GEAR IN; Counterbore Nominal Diameter: 0.5000 INCHES FIRST END IN. 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.