The Gear,spur, cataloged under National Stock Number 3020-00-407-7768, 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 Instrument Systems Corp. Government technical data includes 14 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-407-7768 |
| Primary Part Number | 6019-442 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Instrument Systems Corp |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.500 INCHES BOTH ENDS IN |
| Teeth Quantity | 65 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 0.562 INCHES BOTH ENDS IN |
| Bore Style | W/COUNTERBORE BOTH ENDS |
| Style Designator | HUBLESS |
| Material Document and Classification | QQ-A-250/4,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.8115 INCHES MINIMUM AND 0.8125 INCHES MAXIMUM IN |
| Nominal Outside Diameter | 0.837 INCHES IN |
| Surface Treatment | ANODIZE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Counterbore Nominal Depth | 0.032 INCHES BOTH ENDS IN |
| Face Nominal Width | 0.327 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 |
|---|---|
| 6019-442 PRIMARY | Instrument Systems Corp (USA) |
NSN 3020-00-407-7768 is a Gear,spur, manufactured by Instrument Systems Corp, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-407-7768 has 1 manufacturer part number on file: 6019-442 (Instrument Systems Corp).
1 possible match (shared part number, not a government interchangeability claim): 6605-01-311-7507. Verify interchangeability with system specifications before substitution.
Key specifications for 6019-442: Bore Nominal Diameter: 0.500 INCHES BOTH ENDS IN; Teeth Quantity: 65; Body Style: PLAIN, SOLID; Counterbore Nominal Diameter: 0.562 INCHES BOTH ENDS IN. 14 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.