The Gear,internal, cataloged under National Stock Number 3020-00-874-0640, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-874-0640 |
| Item Name | Gear,internal |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Teeth Quantity | 126 |
| Body Style | PLAIN, SOLID |
| Flange Nominal Thickness | 0.120 INCHES IN |
| Flange Nominal Diameter | 7.160 INCHES IN |
| Teeth Type | SPUR |
| Nominal Overall Length | 1.410 INCHES IN |
| Criticality Code Justification | FEAT |
| Style Designator | FLANGED RING |
| Material Document and Classification | AMS 6260 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 6.4200 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 6.920 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP E9310 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| 76389-1 | 5/9 Secondary reference Honeywell International Inc. Div Aerospace - Torrance |
| 76389-1 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
| 76389-1 | 3/2 Design control — primary reference U.S. Government activity |
| 76389-1 | 5/9 Secondary reference Fuller Tool Co |
NSN 3020-00-874-0640 is a Gear,internal, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-874-0640: Teeth Quantity: 126; Body Style: PLAIN, SOLID; Flange Nominal Thickness: 0.120 INCHES IN; Flange Nominal Diameter: 7.160 INCHES 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.