The Gear Cluster, cataloged under National Stock Number 3020-01-076-1657, 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 Senior Operations Llc Div Senior Aerospace Ketema. Government technical data includes 15 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 | 3020-01-076-1657 |
| Primary Part Number | 8-60019635 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Senior Operations Llc Div Senior Aerospace Ketema |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.375 INCHES BOTH ENDS0.375 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.438 INCHES BETWEEN FIRST AND SECOND GEAR0.438 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Surface Treatment Document and Classification | QQ-P-35,TYPE 2 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-35,TYPE 2 FED SPEC 1ST TREATMENT RESPONSE OR MIL-A-8625,TYPE 1 MIL SPEC 2ND TREATMENT RESPONSE OVERALLMIL-A-8625,TYPE 1 MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| Design Type | SPUR SECOND GEARSPUR SECOND GEAR |
| Design Type | SPUR FIRST GEARSPUR FIRST GEAR |
| Bore Style | PLAIN BOTH ENDSPLAIN BOTH ENDS |
| Nominal Overall Length | 1.250 INCHES1.250 INCHES IN |
| Material Document and Classification | QQ-S-764 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-764 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/6,T4 FED SPEC 2ND MATERIAL RESPONSE OVERALLQQ-A-225/6,T4 FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| Hub Style Designator | PLAIN BETWEEN FIRST AND SECOND GEARPLAIN BETWEEN FIRST AND SECOND GEAR |
| Hub Nominal Length | 0.085 INCHES BETWEEN FIRST AND SECOND GEAR0.085 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Nominal Outside Diameter | 1.5310 INCHES SECOND GEAR1.5310 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 4.1880 INCHES FIRST GEAR4.1880 INCHES FIRST GEAR IN |
| Surface Treatment | PASSIVATE OR PASSIVATE OR ANODIZE OVERALLANODIZE OVERALL |
| Material | STEEL OR STEEL OR ALUMINUM ALLOY 2024 OVERALLALUMINUM ALLOY 2024 OVERALL |
| Construction | ASSEMBLEDASSEMBLED |
| 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 |
|---|---|
| 8-60019635 PRIMARY | Senior Operations Llc Div Senior Aerospace Ketema (USA) |
NSN 3020-01-076-1657 is a Gear Cluster, manufactured by Senior Operations Llc Div Senior Aerospace Ketema, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-076-1657 has 1 manufacturer part number on file: 8-60019635 (Senior Operations Llc Div Senior Aerospace Ketema).
Key specifications for 8-60019635: Bore Nominal Diameter: 0.375 INCHES BOTH ENDS0.375 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.438 INCHES BETWEEN FIRST AND SECOND GEAR0.438 INCHES BETWEEN FIRST AND SECOND GEAR IN; Surface Treatment Document and Classification: QQ-P-35,TYPE 2 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-35,TYPE 2 FED SPEC 1ST TREATMENT RESPONSE OR MIL-A-8625,TYPE 1 MIL SPEC 2ND TREATMENT RESPONSE OVERALLMIL-A-8625,TYPE 1 MIL SPEC 2ND TREATMENT RESPONSE OVERALL; Design Type: SPUR SECOND GEARSPUR SECOND GEAR. 15 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.