The Gear,spur, cataloged under National Stock Number 3020-00-476-9773, 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 Rolls-Royce Corporation. Government technical data includes 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-476-9773 |
| Primary Part Number | 6829383 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.780 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.062 INCHES BOTH ENDS IN |
| Nominal Distance Between Body Face and Recessed Hub End | 0.062 INCHES SECOND END IN |
| Teeth Quantity | 74 |
| Body Style | WEBBED, SOLID |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.406 INCHES FIRST END IN |
| Hardness Rating | 60.0 ROCKWELL C NOMINAL TEETH |
| Style Designator | ONE PROTRUDING HUB, ONE RECESSED HUB |
| Material Document and Classification | AMS 6260 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 7.4000 INCHES NOMINAL IN |
| Tooth Form | SPECIAL |
| Hub Style Designator | PLAIN BOTH ENDS |
| Spline Quantity | 27 BOTH ENDS |
| Nominal Outside Diameter | 7.600 INCHES IN |
| Surface Treatment | OXIDE OVERALL |
| Pressure Angle | 25.0000 DEGREES |
| Material | STEEL COMP E9310 OVERALL |
| Spline Pitch Diameter | 1.6875 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 0.250 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6829383 PRIMARY | Rolls-Royce Corporation (USA) |
| Reference | Meaning |
|---|---|
| 6829383 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
NSN 3020-00-476-9773 is a Gear,spur, manufactured by Rolls-Royce Corporation, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-476-9773 has 1 manufacturer part number on file: 6829383 (Rolls-Royce Corporation).
Key specifications for 6829383: Bore Nominal Diameter: 1.780 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.062 INCHES BOTH ENDS IN; Nominal Distance Between Body Face and Recessed Hub End: 0.062 INCHES SECOND END IN; Teeth Quantity: 74. 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 3020-00-476-9773 has DEMIL Code B. 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.