The Gear Set,worm and Worm Wheel,mat, cataloged under National Stock Number 3020-01-485-7674, 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 Naval Sea Systems Command. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 3020-01-485-7674 |
| Primary Part Number | 845-7383596-4,8 |
| Item Name | Gear Set,worm and Worm Wheel,mat |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Component Quantity | 2 |
| Supplementary Features | BEARING SURFACES AND TEETH ARE TO BE COATED WITH GREASE EBPN 211054471 PER A-A-50433; P/N 845-07383596-8 TO BE ROUGH MACHINED IN THE ANNEALED CONDITION THEN HEAT TREATED TO OBTAIN A ROCKWELL HARDNESS OF C38-44 BEFORE FINAL MACHINING. |
| Unit Package Quantity | 2 |
| Nonsupply Items and Quantities | ONE EACH WORM GEAR P/N 845-7383596-4,8 AND WORM SHAFT P/N 845-7383596-8. |
| Functional Description | OPERATES NHA, 2.500 BALL VALVE |
| 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 |
|---|---|
| 845-7383596-4,8 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 7383596 | D/9 Drawing number reference only Naval Sea Systems Command |
| 2643-840-07-4,8 | 5/2 Secondary reference U.S. Government activity |
NSN 3020-01-485-7674 is a Gear Set,worm and Worm Wheel,mat, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-485-7674 has 1 manufacturer part number on file: 845-7383596-4,8 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-714-7297. Verify interchangeability with system specifications before substitution.
Key specifications for 845-7383596-4,8: Component Quantity: 2; Supplementary Features: BEARING SURFACES AND TEETH ARE TO BE COATED WITH GREASE EBPN 211054471 PER A-A-50433; P/N 845-07383596-8 TO BE ROUGH MACHINED IN THE ANNEALED CONDITION THEN HEAT TREATED TO OBTAIN A ROCKWELL HARDNESS OF C38-44 BEFORE FINAL MACHINING.; Unit Package Quantity: 2; Nonsupply Items and Quantities: ONE EACH WORM GEAR P/N 845-7383596-4,8 AND WORM SHAFT P/N 845-7383596-8.. 5 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.