The Gear,helical, cataloged under National Stock Number 3020-01-045-3287, 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 Naval Sea Systems Command. Government technical data includes 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-045-3287 |
| Primary Part Number | RE-F-102099 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Bore Nominal Diameter | 10.9620 INCHES BOTH ENDS IN |
| Helix Angle | 19.7498 DEGREES |
| Teeth Quantity | 144 |
| Body Style | WEBBED, OFFSET, SOLID |
| Tooth Direction | RIGHT |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 12 COUNTERBORED AXIALLY THROUGH BODY FIRST END |
| Mounting Hole Nominal Diameter | 0.182 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Teeth Type | SINGLE HELIX |
| Style Designator | HUBLESS, RECESSED BODY |
| Material Document and Classification | QQ-N-286,CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 12.7500 INCHES NOMINAL IN |
| Tooth Form | SPECIAL |
| Nominal Outside Diameter | 12.7500 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | NICKEL ALLOY OVERALL |
| Bolt Hole Circle Nominal Diameter | 11.750 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Attachment Method | MOUNTING HOLE |
| Body Recess Nominal Depth | 0.625 INCHES FIRST END IN |
| Face Nominal Width | 1.000 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 |
|---|---|
| RE-F-102099 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| ASC1536450 | 5/9 Secondary reference Asc Pty Ltd |
NSN 3020-01-045-3287 is a Gear,helical, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-045-3287 has 1 manufacturer part number on file: RE-F-102099 (Naval Sea Systems Command).
Key specifications for RE-F-102099: Bore Nominal Diameter: 10.9620 INCHES BOTH ENDS IN; Helix Angle: 19.7498 DEGREES; Teeth Quantity: 144; Body Style: WEBBED, OFFSET, 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.