The Gear Cluster, cataloged under National Stock Number 3020-00-890-3333, 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 Instrument Systems Corp. Government technical data includes 18 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 | 3020-00-890-3333 |
| Primary Part Number | 6013-186 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Instrument Systems Corp |
| Status | ACTIVE |
| Hub Nominal Diameter | 0.055 INCHES BOTH ENDS IN |
| Design Type | SPUR SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Precision Classification | QUALITY NUMBER 10 OR QUALITY NUMBER 11 ALL GEARS |
| Nominal Overall Length | 0.684 INCHES IN |
| Material Document and Classification | QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE SECOND GEAR |
| Material Document and Classification | MIL-P-17091,TYPE 1-CANCELED MIL SPEC SINGLE MATERIAL RESPONSE FIRST GEAR |
| Material Document and Classification | QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE SHAFT/HUB |
| Hub Style Designator | 2 STEPS FIRST END |
| Hub Style Designator | 1 STEP SECOND END |
| Hub Nominal Length | 0.214 INCHES FIRST END IN |
| Hub Nominal Length | 0.265 INCHES SECOND END IN |
| Nominal Outside Diameter | 0.6136 INCHES FIRST GEAR IN |
| Nominal Outside Diameter | 0.6136 INCHES SECOND GEAR IN |
| Material | STEEL COMP 416 SHAFT/HUB |
| Material | STEEL COMP 416 SECOND GEAR |
| Material | PLASTIC POLYAMIDE NYLON FIRST GEAR |
| Construction | ASSEMBLED |
| 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 |
|---|---|
| 6013-186 PRIMARY | Instrument Systems Corp (USA) |
NSN 3020-00-890-3333 is a Gear Cluster, manufactured by Instrument Systems Corp, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-890-3333 has 1 manufacturer part number on file: 6013-186 (Instrument Systems Corp).
Key specifications for 6013-186: Hub Nominal Diameter: 0.055 INCHES BOTH ENDS IN; Design Type: SPUR SECOND GEAR; Design Type: SPUR FIRST GEAR; Precision Classification: QUALITY NUMBER 10 OR QUALITY NUMBER 11 ALL GEARS. 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.