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Technical Data Sheet
HH-I-558 ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
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PRODUCT OVERVIEW

The INSULATION BOARD,THERMAL is a the manufacturer industrial component. Key specifications include width: 48.000 INCHES NOMINAL IN, length: 1200.000 INCHES NOMINAL IN, material: MINERAL FIBER LOCATION NOT OTHERWISE SPECIFIED, thickness: 1.500 INCHES NOMINAL IN, design_form: SPLIT ROUND, flexibility: RIGID. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5640-00-079-3360, 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
HH-I-558
NSN: 5640-00-079-3360
FSC: 5640
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
width48.000 INCHES NOMINAL IN
length1200.000 INCHES NOMINAL IN
materialMINERAL FIBER LOCATION NOT OTHERWISE SPECIFIED
thickness1.500 INCHES NOMINAL IN
design_formSPLIT ROUND
flexibilityRIGID
temp_rating400.0 FAHRENHEIT DEGF
added_binderINCLUDED
affixed_sheetNOT INCLUDED
overall_width24.000 INCHES NOMINAL IN
coverage_width24.000 INCHES NOMINAL IN
density_rating6.0 POUNDS PER CUBIC FOOT LBS
NSN5640-00-079-3360
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available INSULATION BOARD,THERMAL TITLE COMPONENT PN HH-I-558 MFR INSULATION BOARD,THERM
KEY FEATURES
COVERAGE WIDTH: 24.000 INCHES NOMINAL IN
MATERIAL: MINERAL FIBER LOCATION NOT OTHERWISE SPECIFIED
DEPARTURE FROM CITED DESIGNATOR: AS MODIFIED BY TEMP RATING
NONDEFINITIVE SPEC/STD DATA: 1 CLASS
WATER REPELLENT COATED SURFACE: NOT PROVIDED
COVERAGE LENGTH: 48.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH48.000 INCHES NOMINAL IN
COVERAGE WIDTH24.000 INCHES NOMINAL IN
MATERIALMINERAL FIBER LOCATION NOT OTHERWISE SPECIFIED
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY TEMP RATING
NONDEFINITIVE SPEC/STD DATA1 CLASS
SPECIAL FEATURESUSE OF ASBESTOS PROHIBITED;FACTORY APPLIED FOIL-REINFORCED KRAFT FACING ON ONESIDE
WATER REPELLENT COATED SURFACENOT PROVIDED
COVERAGE LENGTH48.000 INCHES NOMINAL IN
MAXIMUM THERMAL CONDUCTIVITY0.25 AT 50 DEG. F MEAN TEMP.
ONE SIDE DECORATION PROVISIONNOT PROVIDED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
ASTM C547Interchangeable
interchangeable cross-reference
interchangeable
HH-I-558 FMDTY3CL12Interchangeable
interchangeable cross-reference
interchangeable
HH-I-558Interchangeable
interchangeable cross-reference
interchangeable
ASTM C612 TY2CT1Interchangeable
interchangeable cross-reference
interchangeable
ASTM C612Interchangeable
interchangeable cross-reference
interchangeable
MIL-I-15475Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is HH-I-558?
HH-I-558 is a INSULATION BOARD,THERMAL.
What parts can replace HH-I-558?
There are 17 known substitutes for HH-I-558: ASTM C547, HH-I-558 FMDTY3CL12, HH-I-558 and 14 more. Substitute compatibility should be verified for your specific system.
Is HH-I-558 still available?
HH-I-558 is currently cancelled.
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