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5640-00-267-1637
Thermal Insulation Blanket
5640002671637 002671637 HHI521
A flexible material composed of one or more kinds of fiber, with or without binder added, supplied in flat sheets or rolls. It may have a vapor barrier or reinforcing material such as paper, woven wire or other sheet material affixed to one or both sides. It is designed to provide resistance to the flow of heat, and must be rated for this use. Excludes insulation components prefabricated into definite shapes and sizes used in aircraft applications. Excludes INSULATION BLANKET,THERMAL,AIRCRAFT. View more Thermal Insulation Blanket
November 2023
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Restrictions 5640-00-267-1637
5640-00-267-1637 is a Thermal Insulation Blanket 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 5640-00-267-1637
- Part Number
- Manufacturer
- Status
- HHI521
- Manufacturer
- 81348 - Federal Specifications (Active)
- Incomplete Standard
- Incomplete Standard