The Gear Cluster, cataloged under National Stock Number 3020-00-115-2124, 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 Astronautics Corporation of America. 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. 3 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 | 3020-00-115-2124 |
| Primary Part Number | 103454 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Astronautics Corporation of America |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.7821 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.687 INCHES FIRST END IN |
| Hub Nominal Diameter | 0.870 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Design Type | SPUR SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Bore Style | PLAIN BOTH ENDS |
| Precision Classification | QUALITY NUMBER 10 FIRST GEAR |
| Nominal Overall Length | 0.296 INCHES IN |
| Material Document and Classification | MIL-S-7720,COMP 303,COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Hub Style Designator | PLAIN BETWEEN FIRST AND SECOND GEAR |
| Hub Style Designator | PLAIN FIRST END |
| Hub Nominal Length | 0.065 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Hub Nominal Length | 0.1110 INCHES FIRST END IN |
| Nominal Outside Diameter | 1.0830 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 1.9250 INCHES FIRST GEAR IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 303 OVERALL |
| Construction | SOLID |
| 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 | X |
| Part Number | Manufacturer |
|---|---|
| 103454 PRIMARY | Astronautics Corporation of America (USA) |
NSN 3020-00-115-2124 is a Gear Cluster, manufactured by Astronautics Corporation of America, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-115-2124 has 1 manufacturer part number on file: 103454 (Astronautics Corporation of America).
3 possible matches (shared part number, not a government interchangeability claim): 5999-00-685-8763, 5835-00-835-2280, 6515-01-443-6739. Verify interchangeability with system specifications before substitution.
Key specifications for 103454: Bore Nominal Diameter: 0.7821 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.687 INCHES FIRST END IN; Hub Nominal Diameter: 0.870 INCHES BETWEEN FIRST AND SECOND GEAR IN; Surface Treatment Document and Classification: QQ-P-35 FED 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.
NSN 3020-00-115-2124 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.