The Gear,spur, cataloged under National Stock Number 3020-00-137-1869, 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 Hamilton Sundstrand Corporation Div Mission Systems. Government technical data includes 19 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 | 3020-00-137-1869 |
| Primary Part Number | 326069 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Hamilton Sundstrand Corporation Div Mission Systems |
| Status | ACTIVE |
| Teeth Quantity | 12 |
| Body Style | PLAIN, SOLID |
| Nominal Distance Between Body Face and Protruding Hub End | 0.938 INCHES FIRST END IN |
| First Step Nominal Length | 0.031 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 10 OR QUALITY NUMBER 11 |
| Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM TEETH |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-S-764,TYPE 416 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.2490 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 0.182 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| End Nominal Length | 0.907 INCHES FIRST END IN |
| Nominal Outside Diameter | 0.291 INCHES IN |
| Surface Treatment | CHROMIUM OVERALL |
| End Nominal Diameter | 0.125 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 416 OVERALL |
| Face Nominal Width | 0.062 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 |
|---|---|
| 326069 PRIMARY | Hamilton Sundstrand Corporation Div Mission Systems (USA) |
NSN 3020-00-137-1869 is a Gear,spur, manufactured by Hamilton Sundstrand Corporation Div Mission Systems, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-137-1869 has 1 manufacturer part number on file: 326069 (Hamilton Sundstrand Corporation Div Mission Systems).
Key specifications for 326069: Teeth Quantity: 12; Body Style: PLAIN, SOLID; Nominal Distance Between Body Face and Protruding Hub End: 0.938 INCHES FIRST END IN; First Step Nominal Length: 0.031 INCHES FIRST END IN. 19 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.