The Gear,spur, cataloged under National Stock Number 3020-00-702-4920, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-702-4920 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Keyway Nominal Width | 0.125 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.438 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.760 INCHES BOTH ENDS IN |
| Teeth Quantity | 38 |
| Body Style | PLAIN, WITH LIGHTENING HOLES |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.062 INCHES BOTH ENDS IN |
| Precision Classification | QUALITY NUMBER 10 |
| Hardness Rating | 33.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | AMS 6260 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.3750 INCHES NOMINAL IN |
| Tooth Form | SPECIAL |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 0.462 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.281 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP E9310 OVERALL |
| Face Nominal Width | 0.188 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 |
| Reference | Meaning |
|---|---|
| 693125 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
| 693125 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-702-4920 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-702-4920: Keyway Nominal Width: 0.125 INCHES BOTH ENDS IN; Bore Nominal Diameter: 0.438 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.760 INCHES BOTH ENDS IN; Teeth Quantity: 38. 19 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.