The Gear,spur, cataloged under National Stock Number 3020-00-676-9840, 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 Honeywell International Inc. Div Aerospace - Torrance. Government technical data includes 27 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-676-9840 |
| Primary Part Number | 373763 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.550 INCHES SECOND END IN |
| Teeth Quantity | 91 |
| Second Step Nominal Diameter | 0.780 INCHES FIRST END IN |
| Body Style | WEBBED, WITH LIGHTENING HOLES |
| Bore Style | PARTIAL SECOND END |
| Nominal Distance Between Body Face and Protruding Hub End | 2.125 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.693 INCHES SECOND END IN |
| First Step Nominal Length | 0.406 INCHES FIRST END IN |
| First Step Nominal Length | 0.400 INCHES SECOND END IN |
| Criticality Code Justification | FEAT |
| Second Step Nominal Length | 0.900 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUBS |
| Bore Nominal Depth | 2.100 INCHES SECOND END IN |
| Pitch Diameter | 4.5500 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 0.670 INCHES FIRST END IN |
| First Step Nominal Diameter | 0.780 INCHES SECOND END IN |
| Hub Style Designator | 2 STEPS FIRST END |
| Hub Style Designator | 1 STEP SECOND END |
| End Nominal Length | 0.387 INCHES SECOND END IN |
| End Nominal Length | 0.905 INCHES FIRST END IN |
| Nominal Outside Diameter | 4.648 INCHES IN |
| End Nominal Diameter | 0.625 INCHES FIRST END IN |
| End Nominal Diameter | 0.670 INCHES SECOND END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL CORROSION RESISTING OVERALL |
| Face Nominal Width | 0.256 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 | Y |
| Part Number | Manufacturer |
|---|---|
| 373763 | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| Reference | Meaning |
|---|---|
| 373763 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
| 373763 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-676-9840 is a Gear,spur, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-676-9840 has 1 manufacturer part number on file: 373763 (Honeywell International Inc. Div Aerospace - Torrance).
Key specifications for 373763: Bore Nominal Diameter: 0.550 INCHES SECOND END IN; Teeth Quantity: 91; Second Step Nominal Diameter: 0.780 INCHES FIRST END IN; Body Style: WEBBED, WITH LIGHTENING HOLES. 27 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 3020-00-676-9840 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.