The Pulley,flat, cataloged under National Stock Number 3020-00-537-9332, 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 Hewlett-Packard Company Dba HP. Government technical data includes 29 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-537-9332 |
| Primary Part Number | 1530-1880 |
| Item Name | Pulley,flat |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Hewlett-Packard Company Dba HP |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 0.734 INCHES NOMINAL AA END IN |
| Bore Feature | INCLUDED |
| Securing Method | THREADED HOLE(S) |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 1.000 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Outside Diameter | 1.625 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Rim Type | SOLID |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Counterbore Depth | 0.475 INCHES NOMINAL IN |
| Counterbore Location | BB END |
| Protruding Hub Characteristic | PLAIN |
| Counterbore Diameter | 1.414 INCHES NOMINAL IN |
| Securing Hole Quantity | 2 |
| Thread Size | 0.112-40 |
| Surface Treatment | RUBBER |
| Distance From Outside Flange/rim to Hub End and Location | 0.375 INCHES NOMINAL AA END IN |
| Keying Facility | NOT INCLUDED |
| Hole Location | ON HUB BETWEEN HUB END AND FACE |
| Counterbore Feature | INCLUDED |
| Bore Diameter | 0.475 INCHES NOMINAL IN |
| Material | ALUMINUM OVERALL |
| Crown Face | NOT INCLUDED |
| Face Width | 0.625 INCHES NOMINAL IN |
| Furnished Items and Quantity | SETSCREW,TWO EACH |
| Securing Location | AA END |
| 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 |
|---|---|
| 1530-1880 PRIMARY | Hewlett-Packard Company Dba HP (USA) |
| Reference | Meaning |
|---|---|
| 07970-20390 | 5/9 Secondary reference Hewlett-Packard Company Dba HP |
NSN 3020-00-537-9332 is a Pulley,flat, manufactured by Hewlett-Packard Company Dba HP, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-537-9332 has 1 manufacturer part number on file: 1530-1880 (Hewlett-Packard Company Dba HP).
Key specifications for 1530-1880: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 0.734 INCHES NOMINAL AA END IN; Bore Feature: INCLUDED; Securing Method: THREADED HOLE(S). 29 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.