The Gear Set,matched, cataloged under National Stock Number 3020-00-159-0750, 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 Arrow Gear Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Gear Set,matched |
| FSC / FSG | 3020 — Gears, Pulleys, Sprockets, and Transmission Chain (FSG 30) |
| Manufacturers | Arrow Gear Llc (CAGE 28596); Westinghouse Electric Corp (CAGE 79500) |
| Parameter | Value |
|---|---|
| NSN | 3020-00-159-0750 |
| Primary Part Number | 635J642H43-45 |
| Item Name | Gear Set,matched |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Arrow Gear Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 635J642H43-45 | Arrow Gear Llc (USA) |
| 635J642PC43-45 | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| 635J642PC43-45 | 3/2 Design control — primary reference U.S. Government activity |
| 635J642PCA43A45 | 5/9 Secondary reference U.S. Government activity |
| 635J642 | D/9 Drawing number reference only Westinghouse Electric Corp |
NSN 3020-00-159-0750 is a Gear Set,matched, manufactured by Arrow Gear Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-159-0750 has 2 manufacturer part numbers on file: 635J642H43-45 (Arrow Gear Llc), 635J642PC43-45 (Westinghouse Electric Corp).
6 possible matches (shared part number, not a government interchangeability claim): 4320-01-173-8226, 3010-01-174-8930, 3010-01-174-8931. Verify interchangeability with system specifications before substitution.
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.