National Item Identification Number
National Stock Number
Federal Supply Class
A washer of various shapes having a centrally located hole. It is primarily used as a seat for a bolt or screw to distribute pressure and has a sealing element. It may be used in connection with metallic washers to which it can be bonded.
Commercial and Government Entity Code (Supplier Data)
Reference Numbers (Part Numbers)
RUBBER SYNTHETIC SEALING ELEMENT
60.0 ROCKWELL B NOMINAL