The Pulley,flat, cataloged under National Stock Number 3020-01-384-6210, 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 Highland Engineering, Inc.. Government technical data includes 18 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-384-6210 |
| Primary Part Number | 9306-4 |
| Item Name | Pulley,flat |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Highland Engineering, Inc. |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | NOT INCLUDED |
| Bearing Quantity | 2 |
| Securing Method | PRESS FIT BEARING |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 20.000 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Outside Diameter | 3.000 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Material Document and Classification | QQ-A-200/8, ALLOY 6061, T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Rim Type | SOLID |
| Keying Facility | NOT INCLUDED |
| Bore Diameter | 2.750 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 6061 OVERALL |
| Crown Face | NOT INCLUDED |
| Face Width | 20.000 INCHES NOMINAL IN |
| Securing Location | BOTH ENDS |
| Lightening Hole | NOT INCLUDED |
| 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 |
|---|---|
| 9306-4 PRIMARY | Highland Engineering, Inc. (USA) |
NSN 3020-01-384-6210 is a Pulley,flat, manufactured by Highland Engineering, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-384-6210 has 1 manufacturer part number on file: 9306-4 (Highland Engineering, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 8340-01-397-5840. Verify interchangeability with system specifications before substitution.
Key specifications for 9306-4: Integral Cooling Vane: NOT INCLUDED; Bore Feature: NOT INCLUDED; Bearing Quantity: 2; Securing Method: PRESS FIT BEARING. 18 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.