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Technical Data Sheet

MODEL 120/120 — ARRESTER,ELECTRICAL SURGE

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

MODEL 120/120: ARRESTER,ELECTRICAL SURGE.

The ARRESTER,ELECTRICAL SURGE is a the manufacturer industrial component. Key specifications include usage_design: INDOOR AND OUTDOOR, overall_width: 3.000 INCHES NOMINAL IN, terminal_type: SCREW, overall_height: 2.000 INCHES NOMINAL IN, overall_length: 4.000 INCHES NOMINAL IN, special_features: LED INDICATOR PROVIDED. This part is cataloged in the U.S.

Government catalog under NSN 5920-01-121-9636, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO→ MRO_GENERAL→ MODEL 120/120
NSN: 5920-01-121-9636
FSC: 5920 — Fuses, Arrestors, Absorbers, and Protectors
CAGE: 29779 — MCG ELECTRONICS, INC. DBA MCG ELECTRONICS INC (USA)
SPECIFICATIONS
usage_designINDOOR AND OUTDOOR
overall_width3.000 INCHES NOMINAL IN
terminal_typeSCREW
overall_height2.000 INCHES NOMINAL IN
overall_length4.000 INCHES NOMINAL IN
special_featuresLED INDICATOR PROVIDED
breakdown_voltage200.000 VOLTS MAXIMUM
terminal_quantity4
line_to_ground_voltage120.000 VOLTS NOMINAL
NSN5920-01-121-9636
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ARRESTER,ELECTRICAL SURGE TITLE COMPONENT PN MODEL 120/120 MFR ARRESTER,ELECTRICAL SU
KEY FEATURES
•
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
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT2.000 INCHES NOMINAL IN
TERMINAL QUANTITY4
USAGE DESIGNINDOOR AND OUTDOOR
TERMINAL TYPESCREW
LINE TO GROUND VOLTAGE120.000 VOLTS NOMINAL
BREAKDOWN VOLTAGE200.000 VOLTS MAXIMUM
OVERALL LENGTH4.000 INCHES NOMINAL IN
OVERALL WIDTH3.000 INCHES NOMINAL IN
SPECIAL FEATURESLED INDICATOR PROVIDED
OTHER ITEMS IN FSC 5920 — Fuses, Arrestors, Absorbers, and Protectors
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5920-00-001-3111 5920-00-001-3260 5920-00-001-3261 5920-00-001-3262 5920-00-001-3263 5920-00-001-3264 5920-00-001-3296 5920-00-001-3840
SUBSTITUTES & CROSS-REFERENCES 1
MCG120-120Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MODEL 120/120?
MODEL 120/120 is a ARRESTER,ELECTRICAL SURGE. It is classified as a MRO (MRO_GENERAL).
What parts can replace MODEL 120/120?
There is 1 known substitute for MODEL 120/120: MCG120-120. Substitute compatibility should be verified for your specific system.
What is the NSN for MODEL 120/120?
MODEL 120/120 is cataloged in the U.S. Government catalog under NSN 5920-01-121-9636. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.