The Gear,spur, cataloged under National Stock Number 3020-00-869-6973, 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 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-869-6973 |
| Primary Part Number | 505827 |
| 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 | 0.550 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.686 INCHES BOTH ENDS IN |
| Teeth Quantity | 7 |
| Body Style | PLAIN, SOLID |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.755 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.790 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | AMS 6260 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 1.1667 INCHES NOMINAL IN |
| Tooth Form | SPECIAL |
| Features Provided | CASEHARDENED |
| Hub Style Designator | PLAIN SECOND END |
| Hub Style Designator | PINNED FIRST END |
| Spline Quantity | 20 BOTH ENDS |
| Nominal Outside Diameter | 1.500 INCHES IN |
| Pressure Angle | 28.0000 DEGREES |
| Material | STEEL OVERALL |
| Spline Pitch Diameter | 0.5000 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 1.500 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 |
NSN 3020-00-869-6973 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 3020-00-869-6973 has 4 manufacturer part numbers on file: 505827 (Bmt Aerospace Usa, Inc.), 505827 (Arrow Gear Llc), 505827 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 505827 (Aero Gear Incorporated).
Key specifications for 505827: Bore Nominal Diameter: 0.550 INCHES BOTH ENDS 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.
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.