The Pulley,groove, cataloged under National Stock Number 3020-01-207-3791, 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 The Boeing Company Div Defense. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-207-3791 |
| Primary Part Number | 74D750000-2007 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Bore Feature | INCLUDED |
| Bearing Quantity | 2 |
| Bore Length | 0.631 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Shape | U |
| Outside Diameter | 2.375 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Groove Depth | 0.312 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | INCLUDED |
| Groove Quantity | 1 |
| Protruding Hub Characteristic | PLAIN |
| Distance From Outside Flange/rim to Hub End and Location | 0.062 INCHES NOMINAL AA END IN |
| Material | STEEL OVERALL |
| Face Width | 0.507 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 74D750000-2007 | Mccay Tool and Engineering Company Dba Mccay Tool & Engineering Co (USA) |
| 74D750000-2007 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 74D750000 | D/9 Drawing number reference only The Boeing Company Div Defense |
NSN 3020-01-207-3791 is a Pulley,groove, manufactured by The Boeing Company Div Defense, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-207-3791 has 2 manufacturer part numbers on file: 74D750000-2007 (Mccay Tool and Engineering Company Dba Mccay Tool & Engineering Co), 74D750000-2007 (The Boeing Company Div Defense).
Key specifications for 74D750000-2007: Bore Feature: INCLUDED; Bearing Quantity: 2; Bore Length: 0.631 INCHES NOMINAL IN; Design Form: PLAIN. 15 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.