The Pulley,groove, cataloged under National Stock Number 3020-00-469-9889, 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 Hatch & Kirk, Inc.. Government technical data includes 29 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-00-469-9889 |
| Primary Part Number | 3224148 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Hatch & Kirk, Inc. |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Third Step Face Largest Diameter and Location | 0.938 INCHES NOMINAL BOTH ENDS IN |
| Hub Outside Diameter | 2.875 INCHES NOMINAL BB END IN |
| Bore Feature | INCLUDED |
| Securing Method | DRILLED HOLE |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 3.375 INCHES NOMINAL IN |
| Design Form | WEBBED |
| Unable to Decode | UNABLE TO DECODE |
| Web/spoke Relationship to Face Centerline | NOT OFFSET |
| First Step Face Largest Diameter and Location | 3.000 INCHES NOMINAL BOTH ENDS IN |
| Groove Shape | V |
| Outside Diameter | 7.500 INCHES NOMINAL IN |
| Distance From Outside Flange/rim to Hub End and Location | 0.938 INCHES NOMINAL AA END IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | WEBBED OR SPOKED |
| Groove Depth | 0.813 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| V Groove Angle in Deg | 38.0 |
| Protruding Hub Characteristic | STEPPED |
| Distance From Center of Bore to Bottom of Keyway | 1.175 INCHES MINIMUM AND 1.180 INCHES MAXIMUM IN |
| Unable to Decode | UNABLE TO DECODE |
| Securing Hole Quantity | 6 |
| Bolt Circle Diameter | 5.000 INCHES NOMINAL IN |
| Drilled Hole Diameter | 0.453125 INCHES NOMINAL IN |
| Keyway Width | 0.376 INCHES MINIMUM AND 0.378 INCHES MAXIMUM 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 |
|---|---|
| 3224120 ITEM 8 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 3224148 PRIMARY | Hatch & Kirk, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3224148 | 5/9 Secondary reference General Motors Corp Electro-Motive Div |
NSN 3020-00-469-9889 is a Pulley,groove, manufactured by Hatch & Kirk, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-469-9889 has 2 manufacturer part numbers on file: 3224120 ITEM 8 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 3224148 (Hatch & Kirk, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 5306-01-266-8308, 4720-01-572-2396. Verify interchangeability with system specifications before substitution.
Key specifications for 3224148: Integral Cooling Vane: NOT INCLUDED; Third Step Face Largest Diameter and Location: 0.938 INCHES NOMINAL BOTH ENDS IN; Hub Outside Diameter: 2.875 INCHES NOMINAL BB END IN; Bore Feature: INCLUDED. 29 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.