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ULTRABLOK 428 — ARRESTER,ELECTRICAL SURGE

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

ULTRABLOK 428: ARRESTER,ELECTRICAL SURGE.

The ARRESTER,ELECTRICAL SURGE is a the manufacturer industrial component. Key specifications include usage_design: INDOOR, arrester_type: GAS, overall_width: 3.312 INCHES NOMINAL IN, terminal_type: CONNECTOR, RECEPTACLE AND CONNECTOR, PLUG, overall_height: 3.062 INCHES NOMINAL IN, overall_length: 4.875 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5920-01-101-2413, 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→ ULTRABLOK 428
NSN: 5920-01-101-2413
NIINs: 011012413, 013585235
FSC: 5920 — Fuses, Arrestors, Absorbers, and Protectors
CAGE: 78820 — TRIPPLITE DIV OF TRIPPE MFG CO (USA)
SPECIFICATIONS
usage_designINDOOR
arrester_typeGAS
overall_width3.312 INCHES NOMINAL IN
terminal_typeCONNECTOR, RECEPTACLE AND CONNECTOR, PLUG
overall_height3.062 INCHES NOMINAL IN
overall_length4.875 INCHES NOMINAL IN
mounting_methodSCREW
special_featuresDIRECT PLUG-IN TO 3 PRONGED GROUNDED OUTLET; 2 OUTLETS PROVIDED; STATUS LIGHT
voltage_in_volts120.0
breakdown_voltage300.000 VOLTS NOMINAL
terminal_quantity2
current_rating_in_amps15.0
NSN5920-01-101-2413
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ARRESTER,ELECTRICAL SURGE TITLE COMPONENT PN ULTRABLOK 428 MFR ARRESTER,ELECTRICAL SU
KEY FEATURES
•
TERMINAL QUANTITY: 2
•
USAGE DESIGN: INDOOR
•
TERMINAL TYPE: CONNECTOR, RECEPTACLE AND CONNECTOR, PLUG
•
LINE TO GROUND VOLTAGE: 117.000 VOLTS NOMINAL
•
MOUNTING METHOD: SCREW
•
BREAKDOWN VOLTAGE: 300.000 VOLTS NOMINAL
•
CRITICALITY CODE JUSTIFICATION: FEAT
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT3.062 INCHES NOMINAL IN
TERMINAL QUANTITY2
USAGE DESIGNINDOOR
TERMINAL TYPECONNECTOR, RECEPTACLE AND CONNECTOR, PLUG
LINE TO GROUND VOLTAGE117.000 VOLTS NOMINAL
MOUNTING METHODSCREW
BREAKDOWN VOLTAGE300.000 VOLTS NOMINAL
CRITICALITY CODE JUSTIFICATIONFEAT
ARRESTER TYPEGAS
OVERALL LENGTH4.875 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 3
T11-428Reference document
Same NSN cross-reference
Reference document — Secondary reference
TII-428Reference document
Same NSN cross-reference
Reference document — Secondary reference
2M12Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ULTRABLOK 428?
ULTRABLOK 428 is a ARRESTER,ELECTRICAL SURGE. It is classified as a MRO (MRO_GENERAL).
What parts can replace ULTRABLOK 428?
There are 3 known substitutes for ULTRABLOK 428: T11-428, TII-428, 2M12. Substitute compatibility should be verified for your specific system.
What is the NSN for ULTRABLOK 428?
ULTRABLOK 428 is cataloged in the U.S. Government catalog under NSN 5920-01-101-2413. 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.