The Gear,spur, cataloged under National Stock Number 3020-01-166-8839, 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 Carlisle & Finch Co. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-166-8839 |
| Primary Part Number | KEF217 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Carlisle & Finch Co |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.503 INCHES COUNTER BORE SECOND END IN |
| Hub Nominal Diameter | 0.875 INCHES FIRST END IN |
| Teeth Quantity | 10 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 0.688 INCHES COUNTER BORE SECOND END IN |
| Bore Style | W/COUNTERBORE COUNTER BORE SECOND END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.312 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB, RECESSED BODY |
| Pitch Diameter | 1.2500 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 1.500 INCHES IN |
| Material | PLASTIC POLYAMIDE NYLON OVERALL |
| Counterbore Nominal Depth | 0.312 INCHES COUNTER BORE SECOND END IN |
| Body Recess Nominal Depth | 0.312 INCHES SECOND END IN |
| Face Nominal Width | 1.000 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 |
|---|---|
| KEF217 PRIMARY | Carlisle & Finch Co (USA) |
| Reference | Meaning |
|---|---|
| EF217 | 5/9 Secondary reference Carlisle & Finch Co |
NSN 3020-01-166-8839 is a Gear,spur, manufactured by Carlisle & Finch Co, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-166-8839 has 1 manufacturer part number on file: KEF217 (Carlisle & Finch Co).
Key specifications for KEF217: Bore Nominal Diameter: 0.503 INCHES COUNTER BORE SECOND END IN; Hub Nominal Diameter: 0.875 INCHES FIRST END IN; Teeth Quantity: 10; Body Style: PLAIN, SOLID. 16 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.