The Gear,spur, cataloged under National Stock Number 3020-01-214-5787, 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 23 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 | 3020-01-214-5787 |
| Primary Part Number | 23017980 |
| 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 | 4.002 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 5.505 INCHES FIRST END IN |
| Teeth Quantity | 63 |
| Body Style | WEBBED, OFFSET, SOLID |
| Counterbore Nominal Diameter | 4.331 INCHES FIRST END IN |
| Bore Style | PLAIN BOTH ENDS |
| Bore Style | W/COUNTERBORE FIRST END |
| Mounting Hole Type and Quantity | 8 THREADED AXIALLY THROUGH HUB FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.990 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB, RECESSED BODY |
| Pitch Diameter | 7.8750 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN FIRST END |
| Mounting Hole Nominal Thread Size | 0.312 INCHES AXIALLY THROUGH HUB FIRST END IN |
| Nominal Outside Diameter | 8.120 INCHES IN |
| Pressure Angle | 25.0000 DEGREES |
| Material | STEEL COMP 8620H OVERALL |
| Bolt Hole Circle Nominal Diameter | 4.920 INCHES AXIALLY THROUGH HUB FIRST END IN |
| Counterbore Nominal Depth | 0.801 INCHES FIRST END IN |
| Mounting Hole Thread Series Designator | UNF AXIALLY THROUGH HUB FIRST END |
| Attachment Method | MOUNTING HOLE |
| Body Recess Nominal Depth | 0.170 INCHES SECOND END IN |
| Face Nominal Width | 0.290 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 3020-01-214-5787 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 3020-01-214-5787 has 2 manufacturer part numbers on file: 23017980 (Hema Disli Sanayi Ve Tic.a.s.), 23017980 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 23017980: Bore Nominal Diameter: 4.002 INCHES BOTH ENDS IN; Hub Nominal Diameter: 5.505 INCHES FIRST END IN; Teeth Quantity: 63; Body Style: WEBBED, OFFSET, SOLID. 23 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.