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4557-28/28V — Technical Data Sheet

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— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The LAMP,INCANDESCENT is a the manufacturer industrial component. Key specifications include base_style: G5.3, bulb_diameter: 42.1 MILLIMETERS NOMINAL MM, overall_length: 44.5 MILLIMETERS NOMINAL MM, voltage_rating: 28.0 VOLTS NOMINAL, wattage_rating: 316.0 WATTS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6240-01-666-0981, 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
4557-28/28V
NSN: 6240-01-666-0981
FSC: 6240
CAGE: 5MZT3 — GE LIGHTING SOLUTIONS, LLC (USA)
SPECIFICATIONS
base_styleG5.3
bulb_diameter42.1 MILLIMETERS NOMINAL MM
overall_length44.5 MILLIMETERS NOMINAL MM
voltage_rating28.0 VOLTS NOMINAL
wattage_rating316.0 WATTS
NSN6240-01-666-0981
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available LAMP,INCANDESCENT TITLE COMPONENT PN 4557-28/28V MFR LAMP,INCANDESCENT
KEY FEATURES
•
BASE STYLE: G5.3
•
WATTAGE RATING: 316.0 WATTS
•
BULB DIAMETER: 42.1 MILLIMETERS NOMINAL MM
•
VOLTAGE RATING: 28.0 VOLTS NOMINAL
TECHNICAL CHARACTERISTICS (FLIS)
BASE STYLEG5.3
WATTAGE RATING316.0 WATTS
BULB DIAMETER42.1 MILLIMETERS NOMINAL MM
OVERALL LENGTH44.5 MILLIMETERS NOMINAL MM
VOLTAGE RATING28.0 VOLTS NOMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
4058-1Interchangeable
interchangeable cross-reference
interchangeable
96400Interchangeable
interchangeable cross-reference
interchangeable
50102Interchangeable
interchangeable cross-reference
interchangeable
SG62-HInterchangeable
interchangeable cross-reference
interchangeable
SG62Interchangeable
interchangeable cross-reference
interchangeable
004058-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4557-28/28V?
4557-28/28V is a LAMP,INCANDESCENT.
What parts can replace 4557-28/28V?
There are 9 known substitutes for 4557-28/28V: 4058-1, 96400, 50102 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4557-28/28V?
4557-28/28V is cataloged in the Federal Logistics Information System (FLIS) under NSN 6240-01-666-0981. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026