NSN 5640-00-938-8698

Part Details | THERMAL INSULATION BLOCK

5640-00-938-8698 A rigid item designed to provide low thermal conductivity. It is composed of one or more kinds of granules and/or fiber with binder added, and has no specific surface perforations, fissures, slots or the like. It is supplied in lengths up to and including 36 inches (914.4 mm). For longer items, see INSULATION BOARD, THERMAL. Excludes BUILDING BOARD (as modified); MILLBOARD, ASBESTOS; ASBESTOS SHEET, COMPRESSED; CORK SHEET; CORK AND RUBBER SHEET; and FIBERBOARD (as modified). See also INSULATION BLANKET, THERMAL.

Alternate Parts: 7081677P001, 7081677PT1, 5640-00-938-8698, 00-938-8698, 5640009388698, 009388698

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
56MAR 25, 196700-938-869815117 ( INSULATION BLOCK, THERMAL )
REFERENCE DRAWINGS & PICTURES

BUTT JOINT

BUTT JOINT

BUTT JOINT

Cross Reference | NSN 5640-00-938-8698
Part Number Cage Code Manufacturer
7081677P00103538LOCKHEED MARTIN CORPORATIONDIV RMS
7081677PT103538LOCKHEED MARTIN CORPORATIONDIV RMS
Technical Data | NSN 5640-00-938-8698
Characteristic Specifications
MATERIAL GLASS FIBER
OVERALL THICKNESS1.000 INCHES NOMINAL
COVERAGE WIDTH24.000 INCHES NOMINAL
OVERALL WIDTH24.000 INCHES NOMINAL
COVERAGE LENGTH36.000 INCHES NOMINAL
OVERALL LENGTH36.000 INCHES NOMINAL
MAXIMUM THERMAL CONDUCTIVITY0.23 AT 75 DEG F MEAN TEMP
LONG EDGE JOINT STYLE BUTT JOINT
SHORT EDGE JOINT STYLE BUTT JOINT
FLAMEPROOF FEATURE NOT INCLUDED
WATER REPELLENT COATED SURFACE PROVIDED
COATING MATERIAL GLASS CLOTH
COATING MATERIAL LOCATION ONE SIDE
ONE SIDE DECORATION PROVISION NOT PROVIDED
DENSITY RATING3.0 POUNDS PER CUBIC FOOT