The Gear,spur, cataloged under National Stock Number 3020-00-756-2079, 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 Us Army Aviation and Missile Command. Government technical data includes 22 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-756-2079 |
| Primary Part Number | 9146751 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Keyway Nominal Width | 0.625 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 2.500 INCHES BOTH ENDS IN |
| Teeth Quantity | 19 |
| Body Style | PLAIN, SOLID |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Mounting Hole Type and Quantity | 3 THREADED AXIALLY THROUGH BODY FIRST END |
| Precision Classification | QUALITY NUMBER 6 OR QUALITY NUMBER 7 |
| Hardness Rating | 50.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM TEETH |
| Style Designator | HUBLESS |
| Pitch Diameter | 6.3330 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Mounting Hole Nominal Thread Size | 0.625 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Nominal Outside Diameter | 7.000 INCHES IN |
| Mounting Hole Thread Quantity Per Inch | 11 AXIALLY THROUGH BODY FIRST END |
| Nominal Distance From Bore Center to Keyway Bottom | 1.517 INCHES BOTH ENDS IN |
| Surface Treatment | OXIDE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Bolt Hole Circle Nominal Diameter | 4.000 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) AXIALLY THROUGH BODY FIRST END |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 3.000 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 |
|---|---|
| 9146751 PRIMARY | Us Army Aviation and Missile Command (USA) |
NSN 3020-00-756-2079 is a Gear,spur, manufactured by Us Army Aviation and Missile Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-756-2079 has 1 manufacturer part number on file: 9146751 (Us Army Aviation and Missile Command).
Key specifications for 9146751: Keyway Nominal Width: 0.625 INCHES BOTH ENDS IN; Bore Nominal Diameter: 2.500 INCHES BOTH ENDS IN; Teeth Quantity: 19; Body Style: PLAIN, SOLID. 22 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.