NSN 5640-01-043-4972

Part Details | THERMAL INSULATION SLEEVING

5640-01-043-4972 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.

Alternate Parts: MILI2781, MIL-I-2781, 5640-01-043-4972, 01-043-4972, 5640010434972, 010434972

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
56JUN 25, 197701-043-497213289 ( INSULATION SLEEVING, THERMAL )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 5640-01-043-4972
Part Number Cage Code Manufacturer
MIL-I-278181349MILITARY SPECIFICATIONSPROMULGATED BY MILITARY
Technical Data | NSN 5640-01-043-4972
Characteristic Specifications
FLEXIBILITY RIGID
LAYER QUANTITY2
MATERIAL CALCIUM SILICATE
FABRICATION METHODM ANY ACCEPTABLE
MATERIAL DENSITY14.0 POUNDS PER CUBIC FOOT NOMINAL
FLAMMABILITY RATING NOT RATED
TEMP RATING501.0 DEG FAHRENHEIT MINIMUM AND 900.0 DEG FAHRENHEIT MAXIMUM
INSULATION THICKNESS4.500 INCHES NOMINAL
INSIDE DIAMETER5.031 INCHES NOMINAL
LENGTH36.000 INCHES NOMINAL
DESIGN FORM SPLIT ROUND
NONDEFINITIVE SPEC/STD DATA4.5 IN. SIZE