The Arrester,electrical Surge, cataloged under National Stock Number 5920-01-121-9636, 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 Mcg Electronics, Inc. Dba Mcg Electronics Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-01-121-9636 |
| Primary Part Number | MODEL 120/120 |
| Item Name | Arrester,electrical Surge |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Mcg Electronics, Inc. Dba Mcg Electronics Inc |
| Status | ACTIVE |
| Terminal Quantity | 4 |
| Usage Design | INDOOR AND OUTDOOR |
| Terminal Type | SCREW |
| Line to Ground Voltage | 120.000 VOLTS NOMINAL |
| Breakdown Voltage | 200.000 VOLTS MAXIMUM |
| 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 |
|---|---|
| MODEL 120/120 PRIMARY | Mcg Electronics, Inc. Dba Mcg Electronics Inc (USA) |
| Reference | Meaning |
|---|---|
| MCG120-120 | C/1 Advisory reference — outside the item-of-supply concept Mcg Electronics, Inc. Dba Mcg Electronics Inc |
NSN 5920-01-121-9636 is a Arrester,electrical Surge, manufactured by Mcg Electronics, Inc. Dba Mcg Electronics Inc, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-121-9636 has 1 manufacturer part number on file: MODEL 120/120 (Mcg Electronics, Inc. Dba Mcg Electronics Inc).
Key specifications for MODEL 120/120: Overall Height: 2.000 INCHES NOMINAL IN; Terminal Quantity: 4; Usage Design: INDOOR AND OUTDOOR; Terminal Type: SCREW. 5 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.