National Item Identification Number

01-023-3569
010233569
5640-01-023-3569
5640010233569

National Stock Number

Item Name

INSULATION BLOCK,THERMAL

Federal Supply Class

5640

Description

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.

Commercial and Government Entity Code (Supplier Data)

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Reference Numbers (Part Numbers)

1681938P1

Required Categories

MATERIAL
OVERALL THICKNESS
OVERALL WIDTH
OVERALL LENGTH
MAXIMUM THERMAL COND

Required Description

FLAT CORRUGATED OR INDENTED ASBESTOS PAPER INSULATION PER FED SPEC HH-I-561C,TYP