The Gear Sector,worm Wheel, cataloged under National Stock Number 3020-01-461-2406, 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 11 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-461-2406 |
| Primary Part Number | 167-6408191-3 |
| Item Name | Gear Sector,worm Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.536 INCHES BOTH ENDS IN |
| Helix Angle | 6.3600 DEGREES |
| Teeth Quantity | 14 |
| Tooth Direction | LEFT |
| Bore Style | PLAIN BOTH ENDS |
| Face Type | CONCAVE |
| Material Document and Classification | AMS5662,COND HF ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pressure Angle | 14.5000 DEGREES |
| Material | NICKEL ALLOY OVERALL |
| Mating Thread Lead Quantity | 1 |
| Face Nominal Width | 0.876 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 |
|---|---|
| 167-6404628-4 | Naval Sea Systems Command (USA) |
| 167-6408191-3 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6408191 | D/9 Drawing number reference only Naval Sea Systems Command |
| DF1502-265 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
| DF1502-292#3 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| DF1502-292 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
| 6404628 | D/9 Drawing number reference only Naval Sea Systems Command |
| DF1502-265#4 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 3020-01-461-2406 is a Gear Sector,worm Wheel, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-461-2406 has 2 manufacturer part numbers on file: 167-6404628-4 (Naval Sea Systems Command), 167-6408191-3 (Naval Sea Systems Command).
4 possible matches (shared part number, not a government interchangeability claim): 2040-01-461-3264, 3040-01-465-2863, 3040-01-465-2886. Verify interchangeability with system specifications before substitution.
Key specifications for 167-6408191-3: Bore Nominal Diameter: 1.536 INCHES BOTH ENDS IN; Helix Angle: 6.3600 DEGREES; Teeth Quantity: 14; Tooth Direction: LEFT. 11 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.