The Gear Sector,spur, cataloged under National Stock Number 3020-01-331-1782, 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 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-331-1782 |
| Primary Part Number | 5821044 |
| Item Name | Gear Sector,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Hub Nominal Diameter | 0.6228 INCHES SECOND END IN |
| Hub Nominal Diameter | 0.6238 INCHES FIRST END IN |
| Counterbore Nominal Diameter | 0.5095 INCHES FIRST COUNTERBORE SECOND END IN |
| Bore Style | W/COUNTERBORE SECOND END |
| Bore Style | PLAIN FIRST END |
| Hardness Rating | 33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Overall Length | 1.0900 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | AMS5342 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Tooth Form | STUB |
| Hub Style Designator | PLAIN FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| Pressure Angle | 20.0000 DEGREES AND 45.0000 DEGREES |
| Material | STEEL CORROSION RESISTING OVERALL |
| Counterbore Nominal Depth | 0.118 INCHES FIRST COUNTERBORE SECOND END IN |
| Face Nominal Width | 0.4800 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 5821044 PRIMARY | Naval Sea Systems Command (USA) |
NSN 3020-01-331-1782 is a Gear Sector,spur, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-331-1782 has 1 manufacturer part number on file: 5821044 (Naval Sea Systems Command).
Key specifications for 5821044: Hub Nominal Diameter: 0.6228 INCHES SECOND END IN; Hub Nominal Diameter: 0.6238 INCHES FIRST END IN; Counterbore Nominal Diameter: 0.5095 INCHES FIRST COUNTERBORE SECOND END IN; Bore Style: W/COUNTERBORE SECOND END. 16 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.
NSN 3020-01-331-1782 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.