The Pulley,groove, cataloged under National Stock Number 3020-01-115-8124, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 26 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-115-8124 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | NOT INCLUDED |
| Third Step Length and Location | 0.937 INCHES NOMINAL AA END IN |
| Split Hub Feature | NOT INCLUDED |
| Design Form | PLAIN |
| Unable to Decode | UNABLE TO DECODE |
| Second Step Face Largest Diameter and Location | 0.875 INCHES NOMINAL AA END IN |
| Groove Radius | 0.200 INCHES NOMINAL IN |
| Groove Shape | U |
| Outside Diameter | 1.437 INCHES NOMINAL IN |
| Distance From Outside Flange/rim to Hub End and Location | 2.655 INCHES NOMINAL AA END AND 1.708 INCHES NOMINAL BB END IN |
| Second Step Length | 1.240 INCHES NOMINAL AA END IN |
| Second Step Length | 1.188 INCHES NOMINAL BB END IN |
| Style Designator | PLAIN |
| Groove Depth | 0.356 INCHES NOMINAL IN |
| Groove Quantity | 7 |
| Unable to Decode | UNABLE TO DECODE AND UNABLE TO DECODE |
| First Step Length | 0.478 INCHES NOMINAL AA END IN |
| First Step Length | 0.875 INCHES NOMINAL BB END IN |
| Unable to Decode | UNABLE TO DECODE |
| Distance From Outside Flange/rim to Hub End and Location | 2.655 INCHES NOMINAL AA END AND 1.708 INCHES NOMINAL BB END IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Face Width | 3.750 INCHES NOMINAL IN |
| Groove Width | 0.400 INCHES NOMINAL IN |
| Lightening Hole | NOT INCLUDED |
| Unable to Decode | UNABLE TO DECODE AND UNABLE TO DECODE |
| 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 |
|---|---|
| 8-52-140-7 | 3/9 Design control — primary reference Itw Heartland Components Inc |
| 8-52T-01 ITEM 28 | 5/9 Secondary reference Itw Heartland Components Inc |
| 8-52-140-7 | 5/9 Secondary reference Illinois Tool Wks Inc Linac Div |
| 8-52-140 | D/9 Drawing number reference only Illinois Tool Wks Inc Linac Div |
| 8-52T01 ITEM 28 | 5/9 Secondary reference Illinois Tool Wks Inc Linac Div |
NSN 3020-01-115-8124 is a Pulley,groove, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-115-8124: Integral Cooling Vane: NOT INCLUDED; Bore Feature: NOT INCLUDED; Third Step Length and Location: 0.937 INCHES NOMINAL AA END IN; Split Hub Feature: NOT INCLUDED. 26 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.