The Gear Rack, cataloged under National Stock Number 3020-01-409-1249, 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 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-409-1249 |
| Primary Part Number | 561-6404325-32 |
| Item Name | Gear Rack |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Teeth Quantity | 16 |
| Pitch Height | 1.5000 INCHES NOMINAL IN |
| Mounting Hole Type and Quantity | 1 THREADED TRANSVERSELY THROUGH BOTTOM |
| Teeth Type | SPUR |
| Nominal Overall Length | 4.500 INCHES IN |
| Style Designator | SQUARE OR RECTANGULAR |
| Mounting Hole Nominal Thread Size | 0.875 INCHES TRANSVERSELY THROUGH BOTTOM IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Mounting Hole Thread Series Designator | UNF TRANSVERSELY THROUGH BOTTOM |
| Attachment Method | MOUNTING HOLE |
| 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 |
|---|---|
| 561-6404325-32 PRIMARY | Naval Sea Systems Command (USA) |
| 211060303 PRIMARY | Naval Sea Systems Command (USA) |
NSN 3020-01-409-1249 is a Gear Rack, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-409-1249 has 2 manufacturer part numbers on file: 561-6404325-32 (Naval Sea Systems Command), 211060303 (Naval Sea Systems Command).
Key specifications for 561-6404325-32: Teeth Quantity: 16; Pitch Height: 1.5000 INCHES NOMINAL IN; Mounting Hole Type and Quantity: 1 THREADED TRANSVERSELY THROUGH BOTTOM; Teeth Type: SPUR. 12 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.