The Gear,internal, cataloged under National Stock Number 3020-01-086-2986, 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 Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-01-086-2986 |
| Primary Part Number | 6883703 |
| Item Name | Gear,internal |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Hub Nominal Diameter | 3.670 INCHES FIRST END IN |
| Teeth Quantity | 81 |
| Body Style | WEBBED, OFFSET, SOLID |
| Bore Style | SQUARE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.670 INCHES FIRST END IN |
| Teeth Type | SPUR |
| Nominal Overall Length | 3.120 INCHES IN |
| Style Designator | SOLID BACK RING, PROTRUDING HUB, RECESSED HUB |
| Pitch Diameter | 7.6820 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Bore Nominal Width | 1.140 INCHES BOTH ENDS IN |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 8.565 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 6883703 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| Reference | Meaning |
|---|---|
| 6883703 | 5/9 Secondary reference Detroit Diesel (overseas Distribution Corp) |
| 8HR507 | 5/9 Secondary reference Oshkosh Corp |
NSN 3020-01-086-2986 is a Gear,internal, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-086-2986 has 1 manufacturer part number on file: 6883703 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 6883703: Hub Nominal Diameter: 3.670 INCHES FIRST END IN; Teeth Quantity: 81; Body Style: WEBBED, OFFSET, SOLID; Bore Style: SQUARE BOTH ENDS. 16 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.