The Arrester,electrical Surge, cataloged under National Stock Number 5920-01-550-5382, is classified within Federal Supply Class 5920 (Fuses, Arrestors, Absorbers, and Protectors) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Nextek Inc. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-01-550-5382 |
| Primary Part Number | QSI-C01 |
| Item Name | Arrester,electrical Surge |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Nextek Inc |
| Status | ACTIVE |
| Terminal Quantity | 2 |
| Terminal Type | CONNECTOR, RECEPTACLE |
| Overall Diameter | 1.260 INCHES MAXIMUM IN |
| Mounting Method | TERMINAL |
| Body Material | ALUMINUM |
| Nuclear Hardness Critical Feature | HARDENED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | H |
| Part Number | Manufacturer |
|---|---|
| QSI-C01 PRIMARY | Nextek Inc (USA) |
| Reference | Meaning |
|---|---|
| A3309166-001 | 7/2 Vendor item drawing reference U.S. Government activity |
| A3309166 | D/9 Drawing number reference only U.S. Government activity |
NSN 5920-01-550-5382 is a Arrester,electrical Surge, manufactured by Nextek Inc, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-550-5382 has 1 manufacturer part number on file: QSI-C01 (Nextek Inc).
Key specifications for QSI-C01: Terminal Quantity: 2; Terminal Type: CONNECTOR, RECEPTACLE; Overall Diameter: 1.260 INCHES MAXIMUM IN; Mounting Method: TERMINAL. 6 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.