>> Search results for: 44745K21 NSN Search Results National Stock Number (NSN) Description 1680-01-623-5022, 1680016235022 FOAM INSULATION-BALLISTIC,RIGID 5640-01-661-9999 , 5640016619999 INSULATION SLEEVE,T 1 Related Inventory Search You can use this search box to continue searching. Search parameters can include any combination of characteristics, specifications, description, partial part numbers, NSN or other stocking number. Special characters are not needed and are automatically stripped before searching. Do you sell this part? Become part of our growing pool of certified suppliers. Send Information