The Gear,spur, cataloged under National Stock Number 3020-00-477-5865, 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 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-477-5865 |
| Primary Part Number | 6881073 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Bore Nominal Diameter | 5.119 INCHES COUNTER BORE SECOND END IN |
| Hub Nominal Diameter | 7.000 INCHES FIRST END IN |
| Teeth Quantity | 54 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 7.780 INCHES COUNTER BORE SECOND END IN |
| Bore Style | W/COUNTERBORE COUNTER BORE SECOND END |
| Mounting Hole Type and Quantity | 12 PLAIN AXIALLY THROUGH HUB FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.500 INCHES FIRST END IN |
| Mounting Hole Nominal Diameter | 0.406 INCHES AXIALLY THROUGH HUB FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 9.0000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 9.345 INCHES IN |
| Pressure Angle | 25.0000 DEGREES |
| Material | STEEL COMP 5140H OVERALL |
| Counterbore Nominal Depth | 0.080 INCHES COUNTER BORE SECOND END IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 1.900 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 |
|---|---|
| 000542T | Kovatch Corp. (USA) |
| 6881073 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| Reference | Meaning |
|---|---|
| 6771883 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
| 6881073 | 5/9 Secondary reference Detroit Diesel (overseas Distribution Corp) |
NSN 3020-00-477-5865 is a Gear,spur, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-477-5865 has 2 manufacturer part numbers on file: 000542T (Kovatch Corp.), 6881073 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 6881073: Bore Nominal Diameter: 5.119 INCHES COUNTER BORE SECOND END IN; Hub Nominal Diameter: 7.000 INCHES FIRST END IN; Teeth Quantity: 54; 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.