Product Details | THERMAL INSULATION BLANKET

5640-00-137-5643 A flexible material composed of one or more kinds of fiber, with or without binder added, supplied in flat sheets or rolls. It may have a vapor barrier or reinforcing material such as paper, woven wire or other sheet material affixed to one or both sides. It is designed to provide resistance to the flow of heat, and must be rated for this use. Excludes insulation components prefabricated into definite shapes and sizes used in aircraft applications. Excludes INSULATION BLANKET,THERMAL,AIRCRAFT.

Part Alternates: HHI558, HH-I-558, HH-I-558 FMCCL10, HHI558FMCCL10, STYLE2, 5640-00-137-5643, 00-137-5643, 5640001375643, 001375643

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

Supply Group (FSG) NSN Assign. NIIN
56 30 JUL 1971 00-137-5643

Cross Reference | NSN 5640-00-137-5643

Part Number Cage Code Manufacturer
HH-I-558 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES
HH-I-558 FMCCL10 80244 GENERAL SERVICES ADMINISTRATION FEDERAL SUPPLY SERVICE
STYLE2 15270 ROCK WOOL MFG CO

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Technical Data | NSN 5640-00-137-5643

Characteristic Specifications
LAYER QUANTITY 1
LAYER MATERIAL MINERAL WOOL
LAYER ENVIRONMENTAL PROTECTION FIRE RESISTANT WATER REPELLENT
LAYER THICKNESS 1.500 INCHES NOMINAL
MAXIMUM THERMAL CONDUCTIVITY 0.59 AT 500 DEGREE FAHRENHEIT
ADDED BINDER NOT INCLUDED
AFFIXED SHEET INCLUDED
MATERIAL AND LOCATION METAL, LATH ONE SIDE WIRE MESH ONE SIDE
COATING MATERIAL ANY ACCEPTABLE
ONE SIDE DECORATION PROVISION NOT PROVIDED
ENVIRONMENTAL PROTECTION FIRE RESISTANT
TEMP RATING 1200.0 DEG FAHRENHEIT
QUILTED FEATURE NOT INCLUDED
THICKNESS 2.000 INCHES NOMINAL
WIDTH 24.000 INCHES NOMINAL
LENGTH 48.000 INCHES NOMINAL
NONDEFINITIVE SPEC/STD DATA C FORM AND 10 CLASS
MANUFACTURERS CODE 81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE HH-I-558

Restrictions/Controls & Freight Information | NSN 5640-00-137-5643

Category Code Description
Hazardous Material Indicator CodeYInformation is in the Hazardous Materials Information System (HMIS)
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