The Gear,helical, cataloged under National Stock Number 3020-00-517-3271, 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 Calgon Carbon Uv Technologies Llc Dba Hyde Marine. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-517-3271 |
| Primary Part Number | 13573-75 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Calgon Carbon Uv Technologies Llc Dba Hyde Marine |
| Status | ACTIVE |
| Helix Angle | 5.0000 DEGREES |
| Hub Nominal Diameter | 7.000 INCHES SECOND END IN |
| Hub Nominal Diameter | 7.000 INCHES FIRST END IN |
| Teeth Quantity | 112 |
| Tooth Direction | RIGHT |
| Mounting Hole Type and Quantity | 1 THREADED TRANSVERSELY THROUGH HUB FIRST END |
| Teeth Type | SINGLE HELIX |
| Nominal Overall Length | 4.750 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | MIL-S-15083,GRADE 90-60 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 28.0000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 28.4000 INCHES IN |
| Mounting Hole Thread Quantity Per Inch | 11 TRANSVERSELY THROUGH HUB FIRST END |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 90-60 OVERALL |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 3.500 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 |
|---|---|
| 13573-75 PRIMARY | Calgon Carbon Uv Technologies Llc Dba Hyde Marine (USA) |
| Reference | Meaning |
|---|---|
| A13573 | 5/9 Secondary reference Calgon Carbon Uv Technologies Llc Dba Hyde Marine |
NSN 3020-00-517-3271 is a Gear,helical, manufactured by Calgon Carbon Uv Technologies Llc Dba Hyde Marine, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-517-3271 has 1 manufacturer part number on file: 13573-75 (Calgon Carbon Uv Technologies Llc Dba Hyde Marine).
Key specifications for 13573-75: Helix Angle: 5.0000 DEGREES; Hub Nominal Diameter: 7.000 INCHES SECOND END IN; Hub Nominal Diameter: 7.000 INCHES FIRST END IN; Teeth Quantity: 112. 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.