The Gear Cluster, cataloged under National Stock Number 3020-01-092-0177, 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 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-092-0177 |
| Primary Part Number | 790-0091-001 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 LUBRICANT IMPREGNATED BEARING1 LUBRICANT IMPREGNATED BEARING |
| Bore Nominal Diameter | 0.125 INCHES BOTH ENDS0.125 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.168 INCHES BETWEEN FIRST AND SECOND GEAR0.168 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Design Type | SPUR SECOND GEARSPUR SECOND GEAR |
| Design Type | SPUR FIRST GEARSPUR FIRST GEAR |
| Bore Style | PLAIN BOTH ENDSPLAIN BOTH ENDS |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM OVERALL44.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Overall Length | 0.260 INCHES0.260 INCHES IN |
| Material Document and Classification | AMS 5643,17-4PH ASSN STD SINGLE MATERIAL RESPONSE OVERALLAMS 5643,17-4PH ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Hub Style Designator | PLAIN BETWEEN FIRST AND SECOND GEARPLAIN BETWEEN FIRST AND SECOND GEAR |
| Hub Nominal Length | 0.063 INCHES BETWEEN FIRST AND SECOND GEAR0.063 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Nominal Outside Diameter | 0.281 INCHES SECOND GEAR0.281 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 1.000 INCHES FIRST GEAR1.000 INCHES FIRST GEAR IN |
| Surface Treatment | PASSIVATE OVERALLPASSIVATE OVERALL |
| Material | STEEL COMP 630 OVERALLSTEEL COMP 630 OVERALL |
| Construction | SOLIDSOLID |
| 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 |
|---|---|
| 790-0091-001 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| Reference | Meaning |
|---|---|
| 790-0091 | D/9 Drawing number reference only Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
NSN 3020-01-092-0177 is a Gear Cluster, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-092-0177 has 1 manufacturer part number on file: 790-0091-001 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-116-6652. Verify interchangeability with system specifications before substitution.
Key specifications for 790-0091-001: Furnished Items and Quantity: 1 LUBRICANT IMPREGNATED BEARING1 LUBRICANT IMPREGNATED BEARING; Bore Nominal Diameter: 0.125 INCHES BOTH ENDS0.125 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.168 INCHES BETWEEN FIRST AND SECOND GEAR0.168 INCHES BETWEEN FIRST AND SECOND GEAR IN; Design Type: SPUR SECOND GEARSPUR SECOND GEAR. 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.