National Stock Number
5640-00-172-6019
National Stock Number (NSN) 5640-00-172-6019, or NIIN 001726019, (insulation pipe fitting covering,thermal) was assigned September 1, 1972 in the Federal Logistics Information System (FLIS). NIIN 001726019 was cancelled on December 15, 2017, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 20893. [AN ITEM COMPOSED OF ONE OR MORE MATERIALS, MOLDED, COMPRESSED AND/OR BAKED INTO A RIGID COVERING OF THE PROPER SHAPE AND SIZE FOR VARIOUS STANDARD PIPE OR TUBE FITTINGS. IT IS SPECIFICALLY DESIGNED TO RESTRICT THE TRANSFER OF HEAT OR PROTECT FROM LOW OR HIGH TEMPERATURES. THE MOLDS ARE CUT IN HALF LENGTHWISE AND MAY BE FURNISHED WITH PROTECTIVE COATINGS, JACKETS, ATTACHING BANDS, AND/OR ACCESSORIES FOR APPLICATION, (EXCLUDING PREFABRICATED COMPONENTS USED IN AIRCRAFT APPLICATIONS). EXCLUDES:INSULATION PIPE COVERING, THERMAL, AIRCRAFT.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 5640001726019 does not contain precious metals.
This information was last updated on Aug 01, 2025.