The Gear Cluster, cataloged under National Stock Number 3020-00-074-9478, 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 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-074-9478 |
| Primary Part Number | 11687152 |
| 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 |
| Design Type | SPUR, ANTI-BACKLASH ALL GEARS |
| Nominal Overall Length | 0.325 INCHES IN |
| Material Document and Classification | QQ-S-763 FED SPEC ALL MATERIAL RESPONSES AND QQ-S-766 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Nominal Outside Diameter | 0.417 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 1.541 INCHES FIRST GEAR IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Construction | ASSEMBLED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 11687152 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
| Reference | Meaning |
|---|---|
| 717138-1 | 5/9 Secondary reference Drs Sustainment Systems, Inc. |
NSN 3020-00-074-9478 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 3020-00-074-9478 has 1 manufacturer part number on file: 11687152 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 11687152: Design Type: SPUR, ANTI-BACKLASH ALL GEARS; Nominal Overall Length: 0.325 INCHES IN; Material Document and Classification: QQ-S-763 FED SPEC ALL MATERIAL RESPONSES AND QQ-S-766 FED SPEC ALL MATERIAL RESPONSES OVERALL; Nominal Outside Diameter: 0.417 INCHES SECOND GEAR IN. 7 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 3020-00-074-9478 has DEMIL Code B. 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.