The Gear,spur, cataloged under National Stock Number 3020-01-176-8614, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-176-8614 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 3.889 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 4.250 INCHES SECOND END IN |
| Hub Nominal Diameter | 4.250 INCHES FIRST END IN |
| Teeth Quantity | 27 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.060 INCHES BOTH ENDS IN |
| Hardness Rating | 58.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL B NOMINAL OVERALL |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 5.4000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 5.800 INCHES IN |
| Pressure Angle | 25.0000 DEGREES |
| Material | STEEL COMP 4620H OR STEEL COMP 8620H OVERALL |
| Face Nominal Width | 0.275 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 |
| Reference | Meaning |
|---|---|
| 13211E8704 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-176-8614 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-176-8614: Bore Nominal Diameter: 3.889 INCHES BOTH ENDS IN; Hub Nominal Diameter: 4.250 INCHES SECOND END IN; Hub Nominal Diameter: 4.250 INCHES FIRST END IN; Teeth Quantity: 27. 17 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 3020-01-176-8614 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.