The Gear,spur, cataloged under National Stock Number 3020-00-992-5717, 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 Westinghouse Electric Corp. Government technical data includes 29 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-992-5717 |
| Primary Part Number | 347C500A1C4D115 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 SETSCREW |
| Bore Nominal Diameter | 0.250 INCHES BOTH ENDS IN |
| Backlash Designation | GRADE C |
| Teeth Quantity | 115 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 1 PLAIN AND 1 THREADED TRANSVERSELY THROUGH HUB FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.250 INCHES FIRST END IN |
| First Step Nominal Length | 0.0625 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 10 |
| Mounting Hole Nominal Diameter | 0.086 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE TEETH |
| Material Document and Classification | QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Pitch Diameter | 2.3958 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 0.875 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| Mounting Hole Nominal Thread Size | 0.138 INCHES AXIALLY THROUGH BODY FIRST END IN |
| End Nominal Length | 0.188 INCHES FIRST END IN |
| Nominal Outside Diameter | 2.4374 INCHES IN |
| Mounting Hole Thread Quantity Per Inch | 32 AXIALLY THROUGH BODY FIRST END |
| Surface Treatment | PASSIVATE HUB |
| Surface Treatment | ANODIZE BODY |
| End Nominal Diameter | 0.500 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | ALUMINUM ALLOY 2024 BODY |
| Material | ALUMINUM ALLOY 2024 TEETH |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) AXIALLY THROUGH BODY FIRST END |
| 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 |
|---|---|
| 347C500A1C4D115 | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| 347C500A1C4D115 | 3/2 Design control — primary reference U.S. Government activity |
| 347C500A1C4D115 | 5/9 Secondary reference Profile Gear Corp |
NSN 3020-00-992-5717 is a Gear,spur, manufactured by Westinghouse Electric Corp, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-992-5717 has 1 manufacturer part number on file: 347C500A1C4D115 (Westinghouse Electric Corp).
Key specifications for 347C500A1C4D115: Furnished Items and Quantity: 1 SETSCREW; Bore Nominal Diameter: 0.250 INCHES BOTH ENDS IN; Backlash Designation: GRADE C; Teeth Quantity: 115. 29 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.