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Thermal Insulation Sleeving

Model / MPN: HHI557 | NSN: 5640-00-641-2736
ITAR Registered seal

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.

Product Details
NATO Stock Number
5640-00-641-2736
Sold in multiples of
DEMIL
NO
Layer Quantity
1
Fabrication Method
Compressed
Material Density
Between 7.0 pounds per cubic foot and 10.0 pounds per cubic foot
Flammability Rating
Not rated
Outer Covering Environmental Protection
Fire retardant and vapor barrier
Insulation Thickness
1.250 inches
Inside Diameter
2.875 inches
Length
Between 35.900 inches and 36.100 inches
Design Form
Split round
Tempurature Rating
Between 1.7 degrees celsius and 65.6 degrees celsius
Flexibility
Rigid
Material
Cork
Material
Cork
Surface Treatment
Paint
Surface Treatment
Paint, asphalt
Nondefinitive Specification/std Data
1 class
HHI55 Series Parts

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HHI557 Cross Reference