The Pulley,groove, cataloged under National Stock Number 3020-00-618-9404, 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 General Electric Company. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-618-9404 |
| Primary Part Number | 938A663P1 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.1550 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Radius | 0.0275 INCHES NOMINAL IN |
| Groove Shape | U |
| Outside Diameter | 0.665 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Groove Depth | 0.0212 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| Surface Treatment | PASSIVATE |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.3749 INCHES NOMINAL IN |
| Face Width | 0.155 INCHES NOMINAL IN |
| Groove Width | 0.0550 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 |
| Part Number | Manufacturer |
|---|---|
| 938A663P1 | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 938A663P1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-618-9404 is a Pulley,groove, manufactured by General Electric Company, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-618-9404 has 1 manufacturer part number on file: 938A663P1 (General Electric Company).
Key specifications for 938A663P1: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Split Hub Feature: NOT INCLUDED; Bore Length: 0.1550 INCHES NOMINAL IN. 19 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.