Product Details | THERMAL INSULATION SLEEVING

5640-00-078-2455 A rigid or flexible item composed of one or more materials, having uniform inside and outside diameters in the entire length. It may be furnished in segments or split-round or full-round sections, composed of one or more layers. It is specifically designed to cover pipe, tubing, and like surfaces, to restrict the transfer of heat from the high temperature surface to the low temperature surface. It may also include protective coatings, jackets, attaching cement, attaching bands, and/or accessories, (excluding prefabricated components used in aircraft applications). Excludes INSULATION PIPE COVERING, THERMAL, AIRCRAFT.

Part Alternates: HHI558, HH-I-558, HH-I-558 FMDTY3CL12, HHI558FMDTY3CL12, 5640-00-078-2455, 00-078-2455, 5640000782455, 000782455

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

Supply Group (FSG) NSN Assign. NIIN
56 09 AUG 1967 00-078-2455

Cross Reference | NSN 5640-00-078-2455

Part Number Cage Code Manufacturer
HH-I-558 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES
HH-I-558 FMDTY3CL12 80244 GENERAL SERVICES ADMINISTRATION FEDERAL SUPPLY SERVICE

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Technical Data | NSN 5640-00-078-2455

Characteristic Specifications
FLEXIBILITY RIGID
LAYER QUANTITY 1
MATERIAL GLASS FIBER
FABRICATION METHOD MOLDED
MATERIAL DENSITY NOT RATED
FLAMMABILITY RATING NOT RATED
JACKET MATERIAL ALUMINUM FOIL
OUTER COVERING ENVIRONMENTAL PROTECTION WATERPROOF
TEMP RATING 188.0 DEG CELSIUS MAXIMUM
INSULATION THICKNESS 1.000 INCHES NOMINAL
INSIDE DIAMETER 6.000 INCHES NOMINAL
LENGTH 36.000 INCHES NOMINAL
DESIGN FORM SPLIT ROUND
NONDEFINITIVE SPEC/STD DATA 3 TYPE AND 12 CLASS AND D FORM
MANUFACTURERS CODE 81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE HH-I-558

Restrictions/Controls & Freight Information | NSN 5640-00-078-2455

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