Product Details | THERMAL INSULATION BOARD

5640-01-237-6609 An item identical in construction to INSULATION BLOCK, THERMAL except that it is supplied in lengths greater than 36 inches (914.4 mm). Excludes BUILDING BOARD (as modified). MILLBOARD, ASBESTOS; ASBESTOS SHEET, COMPRESSED; CORK SHEET; CORK AND RUBBERSHEET; and FIBERBOARD (as modified). See also INSULATION BLANKET, THERMAL.

Part Alternates: HHI558, HH-I-558, HH-I-558 FMACL2, HHI558FMACL2, 83370403, 8337040-3, 5640-01-237-6609, 01-237-6609, 5640012376609, 012376609

Construction and Building Materials | Wallboard, Building Paper, and Thermal Insulation Materials

Supply Group (FSG) NSN Assign. NIIN
56 05 AUG 1986 01-237-6609

Cross Reference | NSN 5640-01-237-6609

Part Number Cage Code Manufacturer
8337040-3 98749 SACRAMENTO AIR LOGISTICS CENTER SM-ALC/LIIL
8337040-3 98752 WARNER ROBINS AIR LOGISTICS CENTER
HH-I-558 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES
HH-I-558 FMACL2 80244 GENERAL SERVICES ADMINISTRATION FEDERAL SUPPLY SERVICE

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Technical Data | NSN 5640-01-237-6609

Characteristic Specifications
MATERIAL MINERAL FIBER
OVERALL THICKNESS 1.000 INCHES NOMINAL
COVERAGE WIDTH 18.500 INCHES NOMINAL
OVERALL WIDTH 18.500 INCHES NOMINAL
COVERAGE LENGTH 45.500 INCHES NOMINAL
OVERALL LENGTH 45.500 INCHES NOMINAL
FLAMEPROOF FEATURE INCLUDED
WATER REPELLENT COATED SURFACE NOT PROVIDED
ONE SIDE DECORATION PROVISION NOT PROVIDED
TEMP RATING 400.0 DEG FAHRENHEIT
DENSITY RATING 6.0 POUNDS PER CUBIC FOOT
SPECIAL FEATURES 4 IN. DIA HOLE CENTER IS 7 IN. FROM SIDE AND 3 1/2 IN. FROM BOTTOM

Restrictions/Controls & Freight Information | NSN 5640-01-237-6609

Category Code Description
Hazardous Material Indicator CodePThere is no information in the HMIS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information