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5640-00-555-8326
Thermal Insulation Block
5640005558326 005558326 HHI554
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 5640-00-555-8326
5640-00-555-8326 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 5640-00-555-8326
- Part Number
- Manufacturer
- Status
- HHI554
- Manufacturer
- 81348 - Federal Specifications (Active)
- Incomplete Standard
- Incomplete Standard
Datasheet 5640-00-555-8326
- Characteristic
- Specifications
- Basic Material Percentage [ATAG]
- Specifications
- Asbestos Fiber 15 Pct,Magnesia 85 Pct
- Coverage Length [BDBR]
- 35.875 Inches Minimum And 36.125 Inches Maximum
- Coverage Width [BDBQ]
- 5.875 Inches Minimum And 6.125 Inches Maximum
- Density Rating [BDNZ]
- 14.0 Pounds Per Cubic Foot
- Flameproof Feature [BDNT]
- Not Included
- Material [MATT]
- Asbestos And Magnesia
- Maximum Thermal Conductivity [BDBG]
- 0.46 At 200 Degree Fahrenheit; 0.50 At 300 Degrees Fahrenheit; 0.53 At 400 Degree Fahrenheit
- Nondefinitive Spec/Std Data [ZZZT]
- 1 Type And A Class
- One Side Decoration Provision [BDNX]
- Not Provided
- Long Edge Joint Style [BDNR]
- Butt Joint
- Short Edge Joint Style [BDNS]
- Butt Joint
- Overall Length [ABHP]
- 35.875 Inches Minimum And 36.125 Inches Maximum
- Overall Thickness [ADUM]
- 1.875 Inches Minimum And 2.125 Inches Maximum
- Overall Width [ABMK]
- 5.875 Inches Minimum And 6.125 Inches Maximum
- Water Repellent Coated Surface [BDNW]
- Not Provided
- Temp Rating [ABJH]
- 600.0 Deg Fahrenheit
NATO Stock Numbers Related to 5640-00-555-8326
Freight Information 5640-00-555-8326
5640-00-555-8326 has freight characteristics.It has a National Motor Freight Classification (NMFC) of 103300. A Sub NMFC of Z. It has a NMFC Description of INSULATING MATERIAL NOI. 5640-00-555-8326 is rated as a variable freight class when transported by Less-Than Truckload (LTL) freight. It has a Uniform Freight Classification (UFC) number of 53360 which rates the freight between FCL and LCL. 5640-00-555-8326 has a variance between NMFC and UFC when transported by rail and the description should be consulted. It has a Water Commodity Code (WCC) of 561 for ocean manifesting and military sealift. 5640-00-555-8326 is not classified as a special type of cargo when transported by water. 5640-00-555-8326 is not a consolidation and does not exceed 84" in any dimension. It should be compatible with a standard 72" Aircraft Cargo Door when transported by air.