The Pulley,groove, cataloged under National Stock Number 3020-00-239-1097, 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 Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County. 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 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 | 3020-00-239-1097 |
| Primary Part Number | 1601391-1 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 0.570 INCHES NOMINAL BOTH ENDS IN |
| Bore Feature | INCLUDED |
| Bearing Quantity | 1 |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.430 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN |
| Design Form | WEBBED |
| Unable to Decode | UNABLE TO DECODE |
| Web/spoke Relationship to Face Centerline | NOT OFFSET |
| First Step Face Largest Diameter and Location | 0.570 INCHES NOMINAL BOTH ENDS IN |
| Groove Radius | 0.047 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| Groove Shape | U |
| Outside Diameter | 2.218 INCHES NOMINAL IN |
| Style Designator | WEBBED OR SPOKED |
| Pitch Diameter | 1.906 INCHES NOMINAL IN |
| Groove Depth | 0.156 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | INCLUDED |
| Groove Quantity | 1 |
| Protruding Hub Characteristic | STEPPED |
| Unable to Decode | UNABLE TO DECODE |
| Bearing Type | BALL |
| Unable to Decode | UNABLE TO DECODE |
| Surface Treatment | PASSIVATE |
| Distance From Outside Flange/rim to Hub End and Location | 0.095 INCHES NOMINAL BOTH ENDS IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.312 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Unable to Decode | UNABLE TO DECODE |
| 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 |
|---|---|
| 1601391-1 PRIMARY | Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County (USA) |
NSN 3020-00-239-1097 is a Pulley,groove, manufactured by Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-239-1097 has 1 manufacturer part number on file: 1601391-1 (Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County).
1 possible match (shared part number, not a government interchangeability claim): 1660-01-538-3522. Verify interchangeability with system specifications before substitution.
Key specifications for 1601391-1: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 0.570 INCHES NOMINAL BOTH ENDS IN; Bore Feature: INCLUDED; Bearing Quantity: 1. 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.