The Gear Set,helical,matched, cataloged under National Stock Number 3020-00-964-9531, 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 Timken Gears & Services Inc. Div Philadelphia Gear. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-964-9531 |
| Primary Part Number | 275D599-1AND275D601-1 |
| Item Name | Gear Set,helical,matched |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Timken Gears & Services Inc. Div Philadelphia Gear |
| Status | ACTIVE |
| Component Quantity | 3 |
| FSC Application Data | SHAFT,PROPULSION,SHIP |
| Nonsupply Items and Quantities | 01289 275D599-1 GEARSHAFT,HELICAL 1; 01289 275D601-1 GEARSHAFT,HELICAL 2 |
| 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 |
|---|---|
| 275D599-1AND275D601-1 PRIMARY | Timken Gears & Services Inc. Div Philadelphia Gear (USA) |
| 275D599PC10C275D601PC1 | Timken Gears & Services Inc. Div Philadelphia Gear (USA) |
| Reference | Meaning |
|---|---|
| 275D599-1AND275D601-1 | 5/9 Secondary reference General Electric Company |
| 275D599PC10C275D601PC1 | 5/9 Secondary reference General Electric Company |
NSN 3020-00-964-9531 is a Gear Set,helical,matched, manufactured by Timken Gears & Services Inc. Div Philadelphia Gear, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-964-9531 has 2 manufacturer part numbers on file: 275D599-1AND275D601-1 (Timken Gears & Services Inc. Div Philadelphia Gear), 275D599PC10C275D601PC1 (Timken Gears & Services Inc. Div Philadelphia Gear).
Key specifications for 275D599-1AND275D601-1: Component Quantity: 3; FSC Application Data: SHAFT,PROPULSION,SHIP; Nonsupply Items and Quantities: 01289 275D599-1 GEARSHAFT,HELICAL 1; 01289 275D601-1 GEARSHAFT,HELICAL 2. 3 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.