The Pulley,cone, cataloged under National Stock Number 3020-00-070-6448, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-00-070-6448 |
| Item Name | Pulley,cone |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 0.750 INCHES NOMINAL AA END IN |
| Hub Outside Diameter | 0.513 INCHES NOMINAL BB END IN |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 2.330 INCHES NOMINAL IN |
| Design Form | WEBBED |
| Groove Radius | 0.052 INCHES NOMINAL IN |
| Face Type | STEP GROOVE |
| Style Designator | WEBBED OR SPOKED |
| Groove Depth | 0.243 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Groove Quantity | 2 |
| Bore Bearing | NOT INCLUDED |
| Unable to Decode | UNABLE TO DECODE AND UNABLE TO DECODE |
| Step Outside Diameter | 3.481 INCHES MINIMUM AND 2.881 INCHES MAXIMUM IN |
| Keying Facility | NOT INCLUDED |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.312 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Face Width | 0.630 INCHES NOMINAL IN |
| Groove Width | 0.145 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 |
|---|---|
| 4-42110-1 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| 4-42110-1 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
NSN 3020-00-070-6448 is a Pulley,cone, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6625-01-328-8046. Verify interchangeability with system specifications before substitution.
Key specifications for 3020-00-070-6448: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 0.750 INCHES NOMINAL AA END IN; Hub Outside Diameter: 0.513 INCHES NOMINAL BB END IN; Split Hub Feature: NOT INCLUDED. 22 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.