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Technical Data Sheet
HH-I-558 FMACL2 ✓ 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
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The INSULATION BOARD,THERMAL is a the manufacturer industrial component. Key specifications include material: MINERAL FIBER LOCATION NOT OTHERWISE SPECIFIED, temp_rating: 400.0 FAHRENHEIT DEGF, overall_width: 23.13 INCHES NOMINAL IN, coverage_width: 24.000 INCHES NOMINAL IN, density_rating: 6.0 POUNDS PER CUBIC FOOT LBS, overall_length: 45.500 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5640-01-237-6608, 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 FMACL2
NSN: 5640-01-237-6608
FSC: 5640
CAGE: 80244 — GENERAL SERVICES ADMINISTRATION FEDERAL SUPPLY SERVICE (USA)
SPECIFICATIONS
materialMINERAL FIBER LOCATION NOT OTHERWISE SPECIFIED
temp_rating400.0 FAHRENHEIT DEGF
overall_width23.13 INCHES NOMINAL IN
coverage_width24.000 INCHES NOMINAL IN
density_rating6.0 POUNDS PER CUBIC FOOT LBS
overall_length45.500 INCHES NOMINAL IN
coverage_length19.000 INCHES NOMINAL IN
overall_thickness1.000 INCHES NOMINAL IN
flameproof_featureINCLUDED
one_side_decoration_provisionNOT PROVIDED
water_repellent_coated_surfaceNOT PROVIDED
NSN5640-01-237-6608
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available INSULATION BOARD,THERMAL TITLE COMPONENT PN HH-I-558 FMACL2 MFR INSULATION BOARD,THERM
KEY FEATURES
MATERIAL: MINERAL FIBER LOCATION NOT OTHERWISE SPECIFIED
DENSITY RATING: 6.0 POUNDS PER CUBIC FOOT LBS
WATER REPELLENT COATED SURFACE: NOT PROVIDED
FLAMEPROOF FEATURE: INCLUDED
TEMP RATING: 400.0 FAHRENHEIT DEGF
OVERALL THICKNESS: 1.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALMINERAL FIBER LOCATION NOT OTHERWISE SPECIFIED
DENSITY RATING6.0 POUNDS PER CUBIC FOOT LBS
WATER REPELLENT COATED SURFACENOT PROVIDED
FLAMEPROOF FEATUREINCLUDED
OVERALL LENGTH45.500 INCHES NOMINAL IN
TEMP RATING400.0 FAHRENHEIT DEGF
OVERALL THICKNESS1.000 INCHES NOMINAL IN
OVERALL WIDTH23.13 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
ASTM C612Interchangeable
interchangeable cross-reference
interchangeable
HH-I-558Interchangeable
interchangeable cross-reference
interchangeable
HH-I-558 FMACL1Interchangeable
interchangeable cross-reference
interchangeable
ASTM C547Interchangeable
interchangeable cross-reference
interchangeable
HH-I-558 FMDTY3CL12Interchangeable
interchangeable cross-reference
interchangeable
ASTM C612 TY2CT1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is HH-I-558 FMACL2?
HH-I-558 FMACL2 is a INSULATION BOARD,THERMAL.
What parts can replace HH-I-558 FMACL2?
There are 17 known substitutes for HH-I-558 FMACL2: ASTM C612, HH-I-558, HH-I-558 FMACL1 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for HH-I-558 FMACL2?
HH-I-558 FMACL2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5640-01-237-6608. This indicates validated use in U.S. government and defense supply chains.
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