Product Details | THERMAL INSULATION SLEEVING

5640-01-021-3668 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: MILI2781, MIL-I-2781, THERMO-12 GOLD, THERMO12GOLD, 5640-01-021-3668, 01-021-3668, 5640010213668, 010213668

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

Supply Group (FSG) NSN Assign. NIIN
56 01-021-3668

Demand History | NSN 5640-01-021-3668

Part Number Request Date QTY Origin
MILI2781 2010-03-63 16 United States
MILI2781 2009-05-135 1 Colombia

Cross Reference | NSN 5640-01-021-3668

Part Number Cage Code Manufacturer
MIL-I-2781 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
THERMO-12 GOLD 0JN76 INDUSTRIAL INSULATION GROUP LLC DBA SPROULE MANUFACTURING
THERMO-12 GOLD 75165 JOHNS MANVILLE INTL

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Technical Data | NSN 5640-01-021-3668

Characteristic Specifications
TEMP RATING 1200.0 DEG FAHRENHEIT MAXIMUM
INSULATION THICKNESS 3.000 INCHES NOMINAL
LENGTH 36.000 INCHES NOMINAL
DESIGN FORM SPLIT ROUND
SPECIAL FEATURES FOR 2 INCH PIPE
III SUPPLEMENTARY FEATURES ASBESTOS-FREE
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL-I-2781

Restrictions/Controls & Freight Information | NSN 5640-01-021-3668

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
Category Code Description
No Freight Information