The Gear,spur, cataloged under National Stock Number 3020-00-673-1246, 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 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-673-1246 |
| Primary Part Number | 544-3518-002 |
| 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 | 0.090 INCHES BOTH ENDS IN |
| Teeth Quantity | 77 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 1 COUNTERSUNK AND 1 THREADED TRANSVERSELY THROUGH HUB FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.244 INCHES FIRST END IN |
| First Step Nominal Length | 0.125 INCHES FIRST END IN |
| Mounting Hole Nominal Diameter | 0.032 INCHES TRANSVERSELY THROUGH HUB FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-A-225/8,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.9625 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 0.625 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| Mounting Hole Nominal Thread Size | 0.086 INCHES TRANSVERSELY THROUGH HUB FIRST END IN |
| End Nominal Length | 0.119 INCHES FIRST END IN |
| Nominal Outside Diameter | 0.988 INCHES IN |
| Surface Treatment | ANODIZE OVERALL |
| End Nominal Diameter | 0.218 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | ALUMINUM ALLOY 6061 OVERALL |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.062 INCHES IN |
| 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 |
|---|---|
| 544-3518-002 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
NSN 3020-00-673-1246 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 3020-00-673-1246 has 1 manufacturer part number on file: 544-3518-002 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 544-3518-002: Bore Nominal Diameter: 0.090 INCHES BOTH ENDS IN; Teeth Quantity: 77; Body Style: PLAIN, SOLID; Bore Style: PLAIN BOTH ENDS. 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 3020-00-673-1246 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.