The Gear,spur, cataloged under National Stock Number 3020-01-642-4619, 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 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-642-4619 |
| Primary Part Number | 845-7526489-2B-07-B-3-N-E-011 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Teeth Quantity | 30 |
| Style Designator | ROUND |
| Nominal Outside Diameter | 3.000 INCHES IN |
| Pressure Angle | 20.0 DEGREES |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 845-7526489-2B-08-B-3-N-E-011 | Naval Sea Systems Command (USA) |
| 845-7526489-2B-07-B-3-N-E-011 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 845-7526489 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3020-01-642-4619 is a Gear,spur, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-642-4619 has 2 manufacturer part numbers on file: 845-7526489-2B-08-B-3-N-E-011 (Naval Sea Systems Command), 845-7526489-2B-07-B-3-N-E-011 (Naval Sea Systems Command).
Key specifications for 845-7526489-2B-07-B-3-N-E-011: Teeth Quantity: 30; Style Designator: ROUND; Nominal Outside Diameter: 3.000 INCHES IN; Part Name Assigned by Controlling Agency: INTERNAL GEAR. 5 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.