The Gear,helical, cataloged under National Stock Number 3020-00-352-8304, 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 Caterpillar Inc Div Caterpillar Defense. Government technical data includes 18 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 | 3020-00-352-8304 |
| Primary Part Number | 7B5331 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.805 INCHES BOTH ENDS IN |
| Helix Angle | 35.0000 DEGREES |
| Teeth Quantity | 9 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | RIGHT |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 2 PLAIN AXIALLY THROUGH BODY SECOND END |
| Mounting Hole Nominal Diameter | 0.250 INCHES AXIALLY THROUGH BODY SECOND END IN |
| Teeth Type | SINGLE HELIX |
| Hardness Rating | 47.0 ROCKWELL C NOMINAL OVERALL |
| Style Designator | HUBLESS |
| Pitch Diameter | 1.3730 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 1.572 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 2.030 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 |
|---|---|
| 7B5331 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 3020-00-352-8304 is a Gear,helical, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-352-8304 has 1 manufacturer part number on file: 7B5331 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 7B5331: Bore Nominal Diameter: 0.805 INCHES BOTH ENDS IN; Helix Angle: 35.0000 DEGREES; Teeth Quantity: 9; Body Style: PLAIN, SOLID. 18 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.