The Arrester,electrical Surge, cataloged under National Stock Number 5920-00-295-9840, 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 Nault Robert Dba Tdr Electronics. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-00-295-9840 |
| Primary Part Number | 8A1HS1 |
| Item Name | Arrester,electrical Surge |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Nault Robert Dba Tdr Electronics |
| Status | ACTIVE |
| Terminal Quantity | 2 |
| Terminal Type | WIRE LEAD |
| Overall Diameter | 0.500 INCHES NOMINAL IN |
| Mounting Method | TERMINAL |
| Breakdown Voltage | 22.000 VOLTS NOMINAL |
| Arrester Type | SELENIUM |
| 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 |
|---|---|
| 8A1HS1 PRIMARY | Nault Robert Dba Tdr Electronics (USA) |
| Reference | Meaning |
|---|---|
| 8A1HS1 | C/1 Advisory reference — outside the item-of-supply concept Elbit Systems of America - Night Vision Llc |
| ARS100ITEM1 | 5/2 Secondary reference U.S. Government activity |
| 8A1HS1 | 5/9 Secondary reference Itt Semiconductors a Division of International Telephone and Telegraph Corp |
NSN 5920-00-295-9840 is a Arrester,electrical Surge, manufactured by Nault Robert Dba Tdr Electronics, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-00-295-9840 has 1 manufacturer part number on file: 8A1HS1 (Nault Robert Dba Tdr Electronics).
Key specifications for 8A1HS1: Terminal Quantity: 2; Terminal Type: WIRE LEAD; Overall Diameter: 0.500 INCHES NOMINAL 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.