The Gear Cluster, cataloged under National Stock Number 3020-01-294-1834, 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 Raytheon Company. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-294-1834 |
| Primary Part Number | 5187130 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Raytheon Company |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.875 INCHES FIRST END IN |
| Bore Nominal Diameter | 0.744 INCHES SECOND END IN |
| Surface Treatment Document and Classification | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Counterbore Nominal Diameter | 2.020 INCHES FIRST END IN |
| Design Type | HELICAL ALL GEARS |
| Bore Style | PLAIN SECOND END |
| Bore Style | W/COUNTERBORE FIRST END |
| Nominal Overall Length | 0.720 INCHES IN |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter | 1.150 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 2.259 INCHES FIRST GEAR IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 416 OVERALL |
| Counterbore Nominal Depth | 0.100 INCHES FIRST END IN |
| Construction | WELDED |
| Attachment Method | MOUNTING HOLE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3020-01-294-1834 is a Gear Cluster, manufactured by Raytheon Company, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-294-1834 has 2 manufacturer part numbers on file: 5187130 (Naval Sea Systems Command), 5187130 (Raytheon Company).
Key specifications for 5187130: Bore Nominal Diameter: 0.875 INCHES FIRST END IN; Bore Nominal Diameter: 0.744 INCHES SECOND END IN; Surface Treatment Document and Classification: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Counterbore Nominal Diameter: 2.020 INCHES FIRST END IN. 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.