The Arrester,electrical Surge, cataloged under National Stock Number 5920-01-084-0875, 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 High Energy Devices, Llc. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5920-01-084-0875 |
| Primary Part Number | UMT(275)550 |
| Item Name | Arrester,electrical Surge |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | High Energy Devices, Llc |
| Status | ACTIVE |
| Terminal Quantity | 2 |
| Usage Design | INDOOR AND OUTDOOR |
| Terminal Type | WIRE LEAD |
| Overall Diameter | 0.165 INCHES NOMINAL IN |
| Precious Material | SILVER |
| Mounting Method | WIRE LEAD TERMINAL(S) |
| Supplementary Features | CAPACITANCE LESS THAN 5 PF; INSULATION RESISTANCE 100 MEGOHMS MIN AT 100 VOLTS DC; OPERATING TEMPERATURE RANGE MINUS 65 DEGREES CELCIUS TO PLUS 85 DEGREES CELCIUS |
| Breakdown Voltage | 550.000 VOLTS MINIMUM AND 725.000 VOLTS MAXIMUM |
| Body Material | GLASS |
| Mounting Configuration | TWO LEADS 1.500 IN. MIN LENGTH 0.020 IN. DIAMETER RADIALLY LOCATED 0.575 IN. MIN TO 0.605 IN. MAX APART ALONG LENGTH OF CASE IN |
| Precious Material and Location | CASE SURFACE SILVER |
| 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 |
|---|---|
| UMT(275)550 | High Energy Devices, Llc (USA) |
| Reference | Meaning |
|---|---|
| UMT(1)-.55 | 5/9 Secondary reference Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron |
| SM-A-761256 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5920-01-084-0875 is a Arrester,electrical Surge, manufactured by High Energy Devices, Llc, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-084-0875 has 1 manufacturer part number on file: UMT(275)550 (High Energy Devices, Llc).
Key specifications for UMT(275)550: Terminal Quantity: 2; Usage Design: INDOOR AND OUTDOOR; Terminal Type: WIRE LEAD; Overall Diameter: 0.165 INCHES NOMINAL IN. 11 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.