The Gear Cluster, cataloged under National Stock Number 3020-00-607-2571, 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 Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 16 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 | 3020-00-607-2571 |
| Primary Part Number | 8419469 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.496 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.500 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Backlash Designation | GRADE C ALL GEARS |
| Surface Treatment Document and Classification | MIL-P-16232,TYPE M,CLASS 1 MIL SPEC 1ST TREATMENT RESPONSE AND MIL-P-16232,TYPE Z,CLASS 1 MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| Design Type | SPUR SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Bore Style | PLAIN BOTH ENDS |
| Precision Classification | QUALITY NUMBER 6 OR QUALITY NUMBER 7 ALL GEARS |
| Nominal Overall Length | 2.245 INCHES IN |
| Hub Style Designator | PLAIN BETWEEN FIRST AND SECOND GEAR |
| Hub Nominal Length | 0.250 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Nominal Outside Diameter | 4.2500 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 6.7500 INCHES FIRST GEAR IN |
| Surface Treatment | PHOSPHATE OVERALL |
| Material | IRON CAST OVERALL |
| 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 |
|---|---|
| 8419469 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 3020-00-607-2571 is a Gear Cluster, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-607-2571 has 1 manufacturer part number on file: 8419469 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 8419469: Bore Nominal Diameter: 1.496 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.500 INCHES BETWEEN FIRST AND SECOND GEAR IN; Backlash Designation: GRADE C ALL GEARS; Surface Treatment Document and Classification: MIL-P-16232,TYPE M,CLASS 1 MIL SPEC 1ST TREATMENT RESPONSE AND MIL-P-16232,TYPE Z,CLASS 1 MIL SPEC 2ND TREATMENT RESPONSE OVERALL. 16 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.