The Arrester,electrical Surge, cataloged under National Stock Number 5920-01-731-0541, 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 Square D Co. Government technical data includes 1 specification, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-01-731-0541 |
| Primary Part Number | HWC53 |
| Item Name | Arrester,electrical Surge |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Square D Co |
| Status | ACTIVE |
| Mounting Configuration | EXTERNAL/PARALLEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| HWC53 PRIMARY | Square D Co (USA) |
NSN 5920-01-731-0541 is a Arrester,electrical Surge, manufactured by Square D Co, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-731-0541 has 1 manufacturer part number on file: HWC53 (Square D Co).
Key specifications for HWC53: Overall Height: 4.0 INCHES NOMINAL IN; Overall Length: 9.6 INCHES NOMINAL IN; Overall Width: 4.9 INCHES NOMINAL IN; Special Features: 480 VOLT; 300 KILOAMPERES; SHORT CIRCUIT CURRENT RATING WITHSTAND: 200,000 AMPERES; OPERATING FREQUENCY: 50/60 HERTZ; ENCLOSURE; NEMA 4X POLYCARBONATE; LEAD WIRES: 10 (AWG) AMERICAN WIRE GAUGE; OPERATING TEMPERATURE: -35 DEGREES CELCIUS TO +85 DEGREES CELCIUS. 1 specification is 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.