5640-01-227-8971
Thermal Insulation Block
5640012278971 012278971 V35373-2
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. View more Thermal Insulation Block
November 2023
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Restrictions 5640-01-227-8971
5640-01-227-8971 is a Thermal Insulation Block that does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. This item is considered a low risk when released from the control of the Department of Defense. The item may still be subject to the requirements of the Export Administration Regulations (EAR) and the Code of Federal Regulations (CFR). This item may be hazardous as it is in a Federal Supply Class for potentially hazardous items. A MSDS should be available from the supplier for the end user to evaluate any hazards. This item does not contain a precious metal.
Approved Sources 5640-01-227-8971
- Part Number
- Manufacturer
- Status
- V35373-2
- Manufacturer
- 16331 - Lockheed Martin Corporation (Active)
- Primary Buy
- Primary Buy
- V35373-2
- 49671 - Lockheed Martin Corporation (Obsolete)
- Canceled/Obsolete
- Canceled/Obsolete