The Pulley,groove, cataloged under National Stock Number 3020-01-141-2163, 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 22 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-141-2163 |
| Primary Part Number | 740750000-2007 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.631 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Radius | 0.130 INCHES NOMINAL IN |
| Groove Shape | U |
| Outside Diameter | 2.375 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Material Document and Classification | AMS 6414 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 1.750 INCHES NOMINAL IN |
| Groove Depth | 0.812 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.507 INCHES NOMINAL IN |
| Material | STEEL COMP 4340 OVERALL |
| Face Width | 0.506 INCHES NOMINAL IN |
| Groove Width | 0.350 INCHES NOMINAL IN |
| Furnished Items and Quantity | 0.750 IN.ID BUSHING,2 REQUIRED 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 |
| Part Number | Manufacturer |
|---|---|
| 740750000-2007 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 74D750000 | D/9 Drawing number reference only The Boeing Company Div Defense |
| 74D750000-2003 | 5/9 Secondary reference The Boeing Company Div Defense |
NSN 3020-01-141-2163 is a Pulley,groove, manufactured by The Boeing Company Div Defense, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-141-2163 has 1 manufacturer part number on file: 740750000-2007 (The Boeing Company Div Defense).
1 possible match (shared part number, not a government interchangeability claim): 3020-01-207-3791. Verify interchangeability with system specifications before substitution.
Key specifications for 740750000-2007: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Split Hub Feature: NOT INCLUDED; Bore Length: 0.631 INCHES NOMINAL IN. 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.