The Pulley,flat, cataloged under National Stock Number 3020-01-033-0290, 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22 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-033-0290 |
| Item Name | Pulley,flat |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Securing Method | DRILLED HOLE AND THREADED HOLE(S) |
| Split Hub Feature | NOT INCLUDED |
| Design Form | PLAIN |
| Flange Quantity | 2 |
| Style Designator | PLAIN |
| Rim Type | SOLID |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Protruding Hub Characteristic | PLAIN |
| Securing Hole Quantity | 2 |
| Thread Size | 6-32 |
| Drilled Hole Diameter | 0.089 INCHES NOMINAL IN |
| Keying Facility | NOT INCLUDED |
| Hole Location | 0.120 IN. FROM HUB END IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.251 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN |
| Flange Location | OUTSIDE |
| Crown Face | NOT INCLUDED |
| Securing Location | AA END |
| 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 |
|---|---|
| 451331 | 3/9 Design control — primary reference Miltope Corporation |
NSN 3020-01-033-0290 is a Pulley,flat, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-033-0290: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Securing Method: DRILLED HOLE AND THREADED HOLE(S); 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.