The Pulley,groove, cataloged under National Stock Number 3020-01-357-7170, 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 Lebus International, Inc.. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-357-7170 |
| Primary Part Number | 8373-C |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Lebus International, Inc. |
| Status | ACTIVE |
| Groove Shape | U |
| Outside Diameter | 25.000 INCHES NOMINAL IN |
| Pitch Diameter | 23.7500 INCHES NOMINAL IN |
| Groove Quantity | 1 |
| 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 |
|---|---|
| 4990-D ITEM 25 | Lebus International, Inc. (USA) |
| 8373-C PRIMARY | Lebus International, Inc. (USA) |
NSN 3020-01-357-7170 is a Pulley,groove, manufactured by Lebus International, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-357-7170 has 2 manufacturer part numbers on file: 4990-D ITEM 25 (Lebus International, Inc.), 8373-C (Lebus International, Inc.).
Key specifications for 8373-C: Groove Shape: U; Outside Diameter: 25.000 INCHES NOMINAL IN; Pitch Diameter: 23.7500 INCHES NOMINAL IN; Groove Quantity: 1. 4 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.