The Gear,spur, cataloged under National Stock Number 3020-01-185-2991, 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 Eaton Corp Dba Eaton Aerospace Jackson. Government technical data includes 20 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 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-185-2991 |
| Primary Part Number | 217150 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Eaton Corp Dba Eaton Aerospace Jackson |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.170 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.373 INCHES SECOND END IN |
| Teeth Quantity | 30 |
| Body Style | PLAIN, SOLID |
| Bore Style | PARTIAL BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.265 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.695 INCHES FIRST END IN |
| Supplementary Features | FIRS END GROVED AND SHOULDERED |
| Nominal Overall Length | 1.0920 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Bore Nominal Depth | 0.500 INCHES BOTH ENDS IN |
| Pitch Diameter | 1.1777 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN SECOND END |
| Hub Style Designator | EXTERNALLY SPLINED, STRAIGHT SPLINES FIRST END |
| Spline Quantity | 9 FIRST END |
| Nominal Outside Diameter | 1.253 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL CORROSION RESISTING OVERALL |
| Face Nominal Width | 0.125 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 217150 PRIMARY | Eaton Corp Dba Eaton Aerospace Jackson (USA) |
NSN 3020-01-185-2991 is a Gear,spur, manufactured by Eaton Corp Dba Eaton Aerospace Jackson, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-185-2991 has 1 manufacturer part number on file: 217150 (Eaton Corp Dba Eaton Aerospace Jackson).
2 possible matches (shared part number, not a government interchangeability claim): 5910-01-450-3935, 5330-01-479-4368. Verify interchangeability with system specifications before substitution.
Key specifications for 217150: Bore Nominal Diameter: 0.170 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.373 INCHES SECOND END IN; Teeth Quantity: 30; Body Style: PLAIN, SOLID. 20 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 3020-01-185-2991 has DEMIL Code Q. 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.