The Pulley,groove, cataloged under National Stock Number 3020-00-423-0079, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 29 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-423-0079 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 2.375 INCHES NOMINAL AA END IN |
| Bore Feature | INCLUDED |
| Securing Method | KEY OR THREADED HOLE(S) |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 4.125 INCHES NOMINAL IN |
| Design Form | WEBBED |
| Unable to Decode | UNABLE TO DECODE |
| First Step Face Largest Diameter and Location | 2.562 INCHES NOMINAL AA END IN |
| Groove Shape | V |
| Outside Diameter | 6.750 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | WEBBED OR SPOKED |
| Groove Depth | 0.688 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 2 |
| Protruding Hub Characteristic | STEPPED |
| Distance From Center of Bore to Bottom of Keyway | 1.000 INCHES NOMINAL IN |
| Unable to Decode | UNABLE TO DECODE |
| Securing Hole Quantity | 3 |
| Bolt Circle Diameter | 3.500 INCHES NOMINAL IN |
| Thread Size | 3/8-16 |
| Keyway Width | 0.375 INCHES NOMINAL IN |
| Unable to Decode | UNABLE TO DECODE |
| Distance From Outside Flange/rim to Hub End and Location | 2.125 INCHES NOMINAL AA END AND 1.125 INCHES NOMINAL BB END IN |
| Hole Location | 120 DEG APART ON FACE OF HUB END |
| Counterbore Feature | 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 |
| Reference | Meaning |
|---|---|
| C4TZ6312A | 3/9 Design control — primary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| C4TZ6312A | C/1 Advisory reference — outside the item-of-supply concept Ford Motor Company |
NSN 3020-00-423-0079 is a Pulley,groove, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-423-0079: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 2.375 INCHES NOMINAL AA END IN; Bore Feature: INCLUDED; Securing Method: KEY OR THREADED HOLE(S). 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.