The Gear,spur, cataloged under National Stock Number 3020-00-326-6845, 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 Teledyne Brown Engineering, Inc. Dba Teledyne Turbine Engines Div Teledyne Turbine Engines. Government technical data includes 18 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 | 3020-00-326-6845 |
| Primary Part Number | 561571 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Teledyne Brown Engineering, Inc. Dba Teledyne Turbine Engines Div Teledyne Turbine Engines |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.310 INCHES BOTH ENDS IN |
| Teeth Quantity | 42 |
| Body Style | WEBBED, WITH LIGHTENING HOLES |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.515 INCHES BOTH ENDS IN |
| First Step Nominal Length | 0.124 INCHES BOTH ENDS IN |
| Hardness Rating | 80.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 91.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | AMS5272 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.6250 INCHES NOMINAL IN |
| First Step Nominal Diameter | 0.520 INCHES BOTH ENDS IN |
| Hub Style Designator | 1 STEP BOTH ENDS |
| End Nominal Length | 0.320 INCHES BOTH ENDS IN |
| Nominal Outside Diameter | 2.748 INCHES IN |
| End Nominal Diameter | 0.472 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 0.314 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 561571 PRIMARY | Teledyne Brown Engineering, Inc. Dba Teledyne Turbine Engines Div Teledyne Turbine Engines (USA) |
NSN 3020-00-326-6845 is a Gear,spur, manufactured by Teledyne Brown Engineering, Inc. Dba Teledyne Turbine Engines Div Teledyne Turbine Engines, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-326-6845 has 1 manufacturer part number on file: 561571 (Teledyne Brown Engineering, Inc. Dba Teledyne Turbine Engines Div Teledyne Turbine Engines).
Key specifications for 561571: Bore Nominal Diameter: 0.310 INCHES BOTH ENDS IN; Teeth Quantity: 42; Body Style: WEBBED, WITH LIGHTENING HOLES; Bore Style: PLAIN BOTH ENDS. 18 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 3020-00-326-6845 has DEMIL Code Q. 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.