The Gear Cluster, cataloged under National Stock Number 3020-01-027-9954, 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 Honeywell International Inc. Div Aerospace - Torrance. Government technical data includes 24 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 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 | 3020-01-027-9954 |
| Primary Part Number | 529377 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| Hub Nominal Diameter | UNABLE TO DECODE0.125 INCHES BOTH ENDS0.125 INCHES BOTH ENDS0.125 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | UNABLE TO DECODE0.173 INCHES BETWEEN FIRST AND SECOND GEAR0.173 INCHES BETWEEN FIRST AND SECOND GEAR0.173 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Hub Nominal Diameter | UNABLE TO DECODE0.173 INCHES BETWEEN SECOND AND THIRD GEAR0.173 INCHES BETWEEN SECOND AND THIRD GEAR0.173 INCHES BETWEEN SECOND AND THIRD GEAR IN |
| Design Type | UNABLE TO DECODESPUR FIRST GEARSPUR FIRST GEARSPUR FIRST GEAR |
| Design Type | UNABLE TO DECODESPUR THIRD GEARSPUR THIRD GEARSPUR THIRD GEAR |
| Design Type | UNABLE TO DECODEWORM WHEEL SECOND GEARWORM WHEEL SECOND GEARWORM WHEEL SECOND GEAR |
| Precision Classification | UNABLE TO DECODEQUALITY NUMBER 11 ALL GEARSQUALITY NUMBER 11 ALL GEARSQUALITY NUMBER 11 ALL GEARS |
| Nominal Overall Length | 2.590 INCHES2.590 INCHES2.590 INCHES IN |
| Material Document and Classification | UNABLE TO DECODE |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL66 FED STD SINGLE MATERIAL RESPONSE OVERALL66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Hub Style Designator | UNABLE TO DECODE1 STEP FIRST END1 STEP FIRST END1 STEP FIRST END |
| Hub Style Designator | UNABLE TO DECODEPLAIN BETWEEN FIRST AND SECOND GEARPLAIN BETWEEN FIRST AND SECOND GEARPLAIN BETWEEN FIRST AND SECOND GEAR |
| Hub Style Designator | UNABLE TO DECODEPLAIN BETWEEN SECOND AND THIRD GEARPLAIN BETWEEN SECOND AND THIRD GEARPLAIN BETWEEN SECOND AND THIRD GEAR |
| Hub Style Designator | UNABLE TO DECODEPLAIN SECOND ENDPLAIN SECOND ENDPLAIN SECOND END |
| Hub Nominal Length | UNABLE TO DECODE0.1440 INCHES SECOND END0.1440 INCHES SECOND END0.1440 INCHES SECOND END IN |
| Hub Nominal Length | UNABLE TO DECODE0.3300 INCHES FIRST END0.3300 INCHES FIRST END0.3300 INCHES FIRST END IN |
| Hub Nominal Length | UNABLE TO DECODE0.640 INCHES BETWEEN SECOND AND THIRD GEAR0.640 INCHES BETWEEN SECOND AND THIRD GEAR0.640 INCHES BETWEEN SECOND AND THIRD GEAR IN |
| Hub Nominal Length | UNABLE TO DECODE0.840 INCHES BETWEEN FIRST AND SECOND GEAR0.840 INCHES BETWEEN FIRST AND SECOND GEAR0.840 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Nominal Outside Diameter | UNABLE TO DECODE0.2920 INCHES SECOND GEAR0.2920 INCHES SECOND GEAR0.2920 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | UNABLE TO DECODE0.6875 INCHES THIRD GEAR0.6875 INCHES THIRD GEAR0.6875 INCHES THIRD GEAR IN |
| Nominal Outside Diameter | UNABLE TO DECODE0.7000 INCHES FIRST GEAR0.7000 INCHES FIRST GEAR0.7000 INCHES FIRST GEAR IN |
| Material | UNABLE TO DECODE |
| Material | STEEL COMP 4130 OVERALLSTEEL COMP 4130 OVERALLSTEEL COMP 4130 OVERALL |
| Construction | SOLIDSOLIDSOLID |
| 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 |
|---|---|
| 529377 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
NSN 3020-01-027-9954 is a Gear Cluster, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-027-9954 has 1 manufacturer part number on file: 529377 (Honeywell International Inc. Div Aerospace - Torrance).
1 possible match (shared part number, not a government interchangeability claim): 6625-01-060-4647. Verify interchangeability with system specifications before substitution.
Key specifications for 529377: Hub Nominal Diameter: UNABLE TO DECODE0.125 INCHES BOTH ENDS0.125 INCHES BOTH ENDS0.125 INCHES BOTH ENDS IN; Hub Nominal Diameter: UNABLE TO DECODE0.173 INCHES BETWEEN FIRST AND SECOND GEAR0.173 INCHES BETWEEN FIRST AND SECOND GEAR0.173 INCHES BETWEEN FIRST AND SECOND GEAR IN; Hub Nominal Diameter: UNABLE TO DECODE0.173 INCHES BETWEEN SECOND AND THIRD GEAR0.173 INCHES BETWEEN SECOND AND THIRD GEAR0.173 INCHES BETWEEN SECOND AND THIRD GEAR IN; Design Type: UNABLE TO DECODESPUR FIRST GEARSPUR FIRST GEARSPUR FIRST GEAR. 24 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 3020-01-027-9954 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.