The Gear,spur, cataloged under National Stock Number 3020-01-534-1738, 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 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-534-1738 |
| Primary Part Number | 820458 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.472 INCHES SECOND END IN |
| Hub Nominal Diameter | 0.686 INCHES BOTH ENDS IN |
| Teeth Quantity | 7 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 0.576 INCHES COUNTERBORE FIRST END IN |
| Bore Style | INVOLUTE SPLINE SECOND END |
| Bore Style | PARTIAL COUNTERBORE FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.690 INCHES COUNTERBORE FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 1.175 INCHES SECOND END IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | AMS 6265 STEEL ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 1.6666 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN BOTH ENDS |
| Spline Quantity | 16 SECOND END |
| Nominal Outside Diameter | 1.500 INCHES IN |
| Pressure Angle | 28.0000 DEGREES |
| Material | STEEL OVERALL |
| Counterbore Nominal Depth | 1.600 INCHES COUNTERBORE FIRST END IN |
| Spline Pitch Diameter | 0.5000 INCHES NOMINAL SECOND END IN |
| Face Nominal Width | 1.560 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 | F |
NSN 3020-01-534-1738 is a Gear,spur, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-534-1738 has 2 manufacturer part numbers on file: 820458 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 820458 (Rtx Corporation Div Pratt & Whitney).
Key specifications for 820458: Bore Nominal Diameter: 0.472 INCHES SECOND END IN; Hub Nominal Diameter: 0.686 INCHES BOTH ENDS IN; Teeth Quantity: 7; Body Style: PLAIN, SOLID. 20 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 3020-01-534-1738 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.