The Gear,worm, cataloged under National Stock Number 3020-01-325-8245, 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 Appleton Marine Inc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Gear,worm |
| FSC / FSG | 3020 — Gears, Pulleys, Sprockets, and Transmission Chain (FSG 30) |
| Manufacturers | Appleton Marine Inc (CAGE 70433) |
| Parameter | Value |
|---|---|
| NSN | 3020-01-325-8245 |
| Primary Part Number | YMD-5583R 02-23-03933-180 |
| Item Name | Gear,worm |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Appleton Marine Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| YMD-5583R 02-23-03933-180 | Appleton Marine Inc (USA) |
| Reference | Meaning |
|---|---|
| 02-20-47411/47420-181 | D/9 Drawing number reference only U.S. Government activity |
| 20-23-03933-180 | 5/2 Secondary reference U.S. Government activity |
| 02-20-47411-181 ITEM 10 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-325-8245 is a Gear,worm, manufactured by Appleton Marine Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-325-8245 has 1 manufacturer part number on file: YMD-5583R 02-23-03933-180 (Appleton Marine Inc).
1 possible match (shared part number, not a government interchangeability claim): 3020-01-325-8246. 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.