The Gear,spur, cataloged under National Stock Number 3020-00-899-3596, 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 26 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 | 3020-00-899-3596 |
| Primary Part Number | 10066544 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Hub Nominal Diameter | 5.625 INCHES SECOND END IN |
| Teeth Quantity | 139 |
| Body Style | WEBBED, SOLID |
| Mounting Hole Type and Quantity | 6 COUNTERBORED AND 4 PLAIN AND 4 THREADED AXIALLY THROUGH BODY FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.264 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.235 INCHES SECOND END IN |
| First Step Nominal Length | 0.093 INCHES FIRST END IN |
| Mounting Hole Nominal Diameter | 0.562 INCHES AND 0.265 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Hardness Rating | 48.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM TEETH |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 13.9000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 7.500 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| Mounting Hole Nominal Thread Size | 0.375 INCHES AXIALLY THROUGH BODY FIRST END IN |
| End Nominal Length | 0.171 INCHES FIRST END IN |
| Nominal Outside Diameter | 14.100 INCHES IN |
| End Nominal Diameter | 4.875 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Bolt Hole Circle Nominal Diameter | 11.500 INCHES AND 6.625 INCHES AND 5.062 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) AXIALLY THROUGH BODY FIRST END |
| 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 |
|---|---|
| 10066544 PRIMARY | Us Army Aviation and Missile Command (USA) |
NSN 3020-00-899-3596 is a Gear,spur, manufactured by Us Army Aviation and Missile Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-899-3596 has 1 manufacturer part number on file: 10066544 (Us Army Aviation and Missile Command).
Key specifications for 10066544: Hub Nominal Diameter: 5.625 INCHES SECOND END IN; Teeth Quantity: 139; Body Style: WEBBED, SOLID; Mounting Hole Type and Quantity: 6 COUNTERBORED AND 4 PLAIN AND 4 THREADED AXIALLY THROUGH BODY FIRST END. 26 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.