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Technical Data Sheet
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620.278 — 620.278

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

620.278: 620.278.

The 620.278 is a the manufacturer industrial component. Key specifications include overall_width: 4.438 INCHES NOMINAL IN, overall_height: 0.750 INCHES NOMINAL IN, overall_length: 6.375 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 6625-00-618-2156, 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→ 620.278
NSN: 6625-00-618-2156
NIINs: 006182156, 008302508, 013426932
FSC: 6625 — Electrical and Electronic Properties Measuring and Testing Instruments
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
overall_width4.438 INCHES NOMINAL IN
overall_height0.750 INCHES NOMINAL IN
overall_length6.375 INCHES NOMINAL IN
NSN6625-00-618-2156
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 620.278 TITLE COMPONENT PN 620.278 MFR 620.278
KEY FEATURES
•
PHASE: SINGLE LOCATION NOT OTHERWISE SPECIFIED
•
LENGTH: 15.600 INCHES NOMINAL IN
•
AC VOLTAGE RATING: 105.0 VOLTS MINIMUM AND 125.0 VOLTS MAXIMUM LOCATION NOT OTHERWISE SPECIFIED
•
HEIGHT: 16.400 INCHES NOMINAL IN
•
SURFACE TREATMENT: ENAMEL
•
ENCLOSURE FEATURE: SINGLE ITEM W/HOUSING
•
FREQUENCY RATING: 50.0 HERTZ MINIMUM AND 800.0 HERTZ MAXIMUM LOCATION NOT OTHERWISE SPECIFIED
•
WIDTH: 15.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
PHASESINGLE LOCATION NOT OTHERWISE SPECIFIED
LENGTH15.600 INCHES NOMINAL IN
AC VOLTAGE RATING105.0 VOLTS MINIMUM AND 125.0 VOLTS MAXIMUM LOCATION NOT OTHERWISE SPECIFIED
HEIGHT16.400 INCHES NOMINAL IN
SURFACE TREATMENTENAMEL
ENCLOSURE FEATURESINGLE ITEM W/HOUSING
FREQUENCY RATING50.0 HERTZ MINIMUM AND 800.0 HERTZ MAXIMUM LOCATION NOT OTHERWISE SPECIFIED
WIDTH15.500 INCHES NOMINAL IN
MATERIALALUMINUM HOUSING
TEST TYPE FOR WHICH DESIGNEDPOWER AND FREQUENCY MEASUREMENTS OF RADAR TRANSMITTER
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 620.278?
620.278 is a 620.278. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 620.278?
620.278 is cataloged in the U.S. Government catalog under NSN 6625-00-618-2156. 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.