The Pulley,groove, cataloged under National Stock Number 3020-00-933-7930, 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 Eaton Corp Industrial Drives Opns Distributor Products Div. Government technical data includes 30 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-933-7930 |
| Primary Part Number | 3B7-0QD |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Eaton Corp Industrial Drives Opns Distributor Products Div |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 4.400 INCHES NOMINAL BOTH ENDS IN |
| Bore Feature | INCLUDED |
| Taper Bore Minor Diameter | 2.745 INCHES NOMINAL IN |
| Securing Method | DRILLED HOLE AND THREADED HOLE(S) |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 1.300 INCHES NOMINAL IN |
| Design Form | WEBBED |
| Web/spoke Relationship to Face Centerline | OFFSET |
| Groove Shape | V |
| Outside Diameter | 7.360 INCHES NOMINAL IN |
| Taper Major Diameter Location | AA END |
| Style Designator | WEBBED OR SPOKED |
| Pitch Diameter | 7.010 INCHES NOMINAL IN |
| Groove Depth | 0.640 INCHES NOMINAL IN |
| Bore Type | TAPERED |
| Bearings | NOT INCLUDED |
| Groove Quantity | 3 |
| Taper Bore Major Diameter | 2.800 INCHES NOMINAL IN |
| V Groove Angle in Deg | 36.0 |
| Securing Hole Quantity | 6 |
| Bolt Circle Diameter | 3.250 INCHES NOMINAL IN |
| Thread Size | 5/16-18 |
| Drilled Hole Diameter | 0.375 INCHES NOMINAL IN |
| Unable to Decode | UNABLE TO DECODE |
| Surface Treatment | PAINT |
| Distance From Outside Flange/rim to Hub End and Location | 0.678 INCHES NOMINAL AA END AND 0.562 INCHES NOMINAL BB END IN |
| Hole Location | THRU BODY |
| Counterbore Feature | NOT INCLUDED |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3020-00-933-7930 is a Pulley,groove, manufactured by Eaton Corp Industrial Drives Opns Distributor Products Div, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-933-7930 has 2 manufacturer part numbers on file: 3B7-0QD (Eaton Corp Industrial Drives Opns Distributor Products Div), 3B7-0QD (Maurey Mfg Co).
Key specifications for 3B7-0QD: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 4.400 INCHES NOMINAL BOTH ENDS IN; Bore Feature: INCLUDED; Taper Bore Minor Diameter: 2.745 INCHES NOMINAL IN. 30 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.