National Stock Number
1630-01-216-4777
National Stock Number (NSN) 1630-01-216-4777, or NIIN 012164777, (piston insulator,thermal,brake) was assigned September 11, 1985 in the Federal Logistics Information System (FLIS). NIIN 012164777 was cancelled on May 1, 2010, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN replaces 1 stock number, 1630010923121.
There are 2 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are 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) 47996. [A PHENOLIC OR METALLIC COMPOSITE DEVICE OF VARIOUS SHAPES AND SIZES LOCATED BETWEEN BRAKE ACTUATING PISTONS AND THE PRESSURE PLATE. IT PREVENTS THE HEAT TRANSFER FROM THE PRESSURE PLATE INTO THE PISTON WHICH COULD DAMAGE SEALS AND HYDRAULIC FLUID WITHIN THE PISTON HOUSING.]. 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 1630012164777 does not contain precious metals.
This information was last updated on Aug 01, 2025.