The Pulley,groove, cataloged under National Stock Number 3020-00-070-6449, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 25 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-00-070-6449 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 0.462 INCHES NOMINAL AA END IN |
| Bore Feature | INCLUDED |
| Bearing Quantity | 1 |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.469 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Radius | 0.050 INCHES NOMINAL IN |
| Outside Diameter | 2.312 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Pitch Diameter | 2.000 INCHES NOMINAL IN |
| Groove Depth | 0.360 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | INCLUDED |
| Groove Quantity | 1 |
| Protruding Hub Characteristic | PLAIN |
| Bearing Type | BALL |
| Unable to Decode | UNABLE TO DECODE |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.312 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Unable to Decode | UNABLE TO DECODE |
| Face Width | 0.270 INCHES NOMINAL IN |
| Groove Width | 0.125 INCHES NOMINAL IN |
| 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 |
| Reference | Meaning |
|---|---|
| 4-42112-3 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
| 4-42112-3 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
NSN 3020-00-070-6449 is a Pulley,groove, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-070-6449: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 0.462 INCHES NOMINAL AA END IN; Bore Feature: INCLUDED; Bearing Quantity: 1. 25 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.