The Gear,spur, cataloged under National Stock Number 3020-01-346-4205, 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 Bae Systems Information and Electronic Systems Integration Inc.. Government technical data includes 22 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 | 3020-01-346-4205 |
| Primary Part Number | 1264-453 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Bae Systems Information and Electronic Systems Integration Inc. |
| Status | ACTIVE |
| Bore Nominal Diameter | 4.000 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 4.624 INCHES FIRST END IN |
| Teeth Quantity | 304 |
| Surface Treatment Document and Classification | MIL-F-14072,FNSH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 4.156 INCHES COUNTERBORE FIRST END IN |
| Bore Style | W/COUNTERBORE COUNTERBORE FIRST END |
| Mounting Hole Type and Quantity | 8 COUNTERBORED AXIALLY THROUGH BODY SECOND END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.216 INCHES FIRST END IN |
| Mounting Hole Nominal Diameter | 0.187 INCHES AXIALLY THROUGH BODY SECOND END IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | ASTM A582,COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 4.7500 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 4.781 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 303 OVERALL |
| Bolt Hole Circle Nominal Diameter | 4.098 INCHES AXIALLY THROUGH BODY SECOND END IN |
| Counterbore Nominal Depth | 0.093 INCHES COUNTERBORE FIRST END IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.190 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 |
|---|---|
| 1264-453 PRIMARY | Bae Systems Information and Electronic Systems Integration Inc. (USA) |
NSN 3020-01-346-4205 is a Gear,spur, manufactured by Bae Systems Information and Electronic Systems Integration Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-346-4205 has 1 manufacturer part number on file: 1264-453 (Bae Systems Information and Electronic Systems Integration Inc.).
Key specifications for 1264-453: Bore Nominal Diameter: 4.000 INCHES BOTH ENDS IN; Hub Nominal Diameter: 4.624 INCHES FIRST END IN; Teeth Quantity: 304; Surface Treatment Document and Classification: MIL-F-14072,FNSH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 22 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.