The Pulley,flat, cataloged under National Stock Number 3020-01-019-2968, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 29 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-019-2968 |
| 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 | THREADED HOLE(S) |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.625 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Flange Quantity | 2 |
| Outside Diameter | 1.000 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Material Document and Classification | QQ-B-626,ALLOY 260,1/2 H FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.875 INCHES NOMINAL IN |
| Outside Diameter | 1.000 INCHES NOMINAL IN |
| Rim Type | SOLID |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Securing Hole Quantity | 3 |
| Thread Size | 0.112-40 |
| Surface Treatment | NICKEL |
| Keying Facility | NOT INCLUDED |
| Hole Location | 3/16 INCH FROM FIRST END,90 DEG APART IN |
| Flange Width | 0.062 INCHES NOMINAL IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.253 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 260 OVERALL |
| Flange Location | OUTSIDE |
| Crown Face | NOT INCLUDED |
| Face Width | 0.625 INCHES NOMINAL IN |
| Securing Location | PULLEY SURFACE |
| 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 |
|---|---|
| 1630-205 | 5/9 Secondary reference Tram Electronics Inc |
| SM-B-398415 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-019-2968 is a Pulley,flat, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-019-2968: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Securing Method: THREADED HOLE(S); Split Hub Feature: NOT INCLUDED. 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.