The Pulley,flat, cataloged under National Stock Number 3020-01-064-2834, 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 Bae Systems Information & Electronic Systems Integration Inc.. Government technical data includes 27 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-064-2834 |
| Primary Part Number | 131858-0001 |
| Item Name | Pulley,flat |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Bae Systems Information & Electronic Systems Integration Inc. |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 0.300 INCHES NOMINAL BOTH ENDS IN |
| Bore Feature | INCLUDED |
| Bearing Quantity | 1 |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.145 INCHES NOMINAL IN |
| Design Form | WEBBED |
| Web/spoke Relationship to Face Centerline | OFFSET |
| Flange Quantity | 2 |
| Outside Diameter | 0.572 INCHES NOMINAL IN |
| Style Designator | WEBBED OR SPOKED |
| Outside Diameter | 0.700 INCHES NOMINAL IN |
| Rim Type | SOLID |
| Bore Type | STRAIGHT |
| Bearings | INCLUDED |
| Bearing Type | BALL |
| Unable to Decode | UNABLE TO DECODE |
| Distance From Outside Flange/rim to Hub End and Location | 0.078 INCHES NOMINAL AA END AND 0.047 INCHES NOMINAL BB END IN |
| Keying Facility | NOT INCLUDED |
| Flange Width | 0.025 INCHES NOMINAL IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.250 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY OVERALL |
| Flange Location | OUTSIDE |
| Crown Face | NOT INCLUDED |
| Face Width | 0.270 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 |
|---|---|
| 131858-0001 PRIMARY | Bae Systems Information & Electronic Systems Integration Inc. (USA) |
| Reference | Meaning |
|---|---|
| 131858 | D/9 Drawing number reference only Bae Systems Information & Electronic Systems Integration Inc. |
NSN 3020-01-064-2834 is a Pulley,flat, manufactured by Bae Systems Information & Electronic Systems Integration Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-064-2834 has 1 manufacturer part number on file: 131858-0001 (Bae Systems Information & Electronic Systems Integration Inc.).
1 possible match (shared part number, not a government interchangeability claim): 2815-01-478-0627. Verify interchangeability with system specifications before substitution.
Key specifications for 131858-0001: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 0.300 INCHES NOMINAL BOTH ENDS IN; Bore Feature: INCLUDED; Bearing Quantity: 1. 27 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.