The Gear Sector,spur, cataloged under National Stock Number 3020-01-312-5097, 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 Us Army Aviation and Missile Command. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-312-5097 |
| Primary Part Number | 13344603 |
| Item Name | Gear Sector,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Teeth Quantity | 58 |
| Nominal Outside Radius | 12.076 INCHES IN |
| Mounting Hole Type and Quantity | 6 PLAIN AXIALLY THROUGH BODY FIRST END |
| Mounting Hole Nominal Diameter | 0.420 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Hardness Rating | 58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM TEETH |
| Style Designator | HUBLESS |
| Material Document and Classification | MIL-S-46172,GRADE D MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Arc Nominal Length | 18.224 INCHES IN |
| Surface Treatment | CARBON OVERALL |
| Pitch Radius | 12.0172 INCHES NOMINAL IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 8617H OR STEEL COMP 8620H OVERALL |
| Bolt Hole Circle Nominal Diameter | 5.148 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 1.000 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 |
|---|---|
| 13344603 PRIMARY | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 13344603 | 5/9 Secondary reference Quality Broach Co Inc |
NSN 3020-01-312-5097 is a Gear Sector,spur, manufactured by Us Army Aviation and Missile Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-312-5097 has 1 manufacturer part number on file: 13344603 (Us Army Aviation and Missile Command).
Key specifications for 13344603: Teeth Quantity: 58; Nominal Outside Radius: 12.076 INCHES IN; Mounting Hole Type and Quantity: 6 PLAIN AXIALLY THROUGH BODY FIRST END; Mounting Hole Nominal Diameter: 0.420 INCHES AXIALLY THROUGH BODY FIRST END IN. 15 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.