The Gear,spur, cataloged under National Stock Number 3020-00-671-5840, 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 21 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-671-5840 |
| Primary Part Number | 506-1793-002 |
| Item Name | Gear,spur |
| 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 |
| Bore Nominal Diameter | 0.250 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.437 INCHES SECOND END IN |
| Teeth Quantity | 108 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.289 INCHES FIRST END IN |
| Nominal Overall Length | 0.369 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | MIL-S-5059,TYPE 302 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.2500 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN SECOND END |
| Hub Style Designator | 1 GROOVE FIRST END |
| Nominal Outside Diameter | 2.291 INCHES IN |
| Nominal Distance From End to First Groove | 0.212 INCHES FIRST END IN |
| End Nominal Diameter | 0.313 INCHES FIRST END IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | STEEL COMP 302 OVERALL |
| First Groove Nominal Diameter | 0.293 INCHES FIRST END IN |
| First Groove Nominal Width | 0.031 INCHES FIRST END IN |
| Attachment Method | CLAMP |
| Face Nominal Width | 0.039 INCHES IN |
| 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 |
|---|---|
| 506-1793-002 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| Reference | Meaning |
|---|---|
| 344B24589-1 | 5/9 Secondary reference U.S. Government activity |
| 344B24589-1 | 5/9 Secondary reference General Dynamics Mission Systems, Inc. Dba Gdms |
NSN 3020-00-671-5840 is a Gear,spur, 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 3020-00-671-5840 has 1 manufacturer part number on file: 506-1793-002 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 506-1793-002: Bore Nominal Diameter: 0.250 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.437 INCHES SECOND END IN; Teeth Quantity: 108; Body Style: PLAIN, SOLID. 21 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.