| National Stock Number:
 3930-00-754-3900
 
 Federal Supply Class:
 3930
 
 National Item Identification Number:
 007543900
 
 Description:
 RING,WIPER
 
 Detail:
 A CIRCULAR, SINGLE OR MULTIPIECE, RIGID, METALLIC OR NONMETALLIC ITEM HAVING A CENTRALLY LOCATED HOLE WITH A SHARP EDGE ON THE INSIDE PERIPHERY. IT IS SUPPLIED IN VARIOUS CROSS-SECTIONAL SHAPES AND IS DESIGNED TO BE INSTALLED IN A CYLINDER, SHOCK STRUT, OR SIMILAR DEVICE TO REMOVE EXCESS OIL, DIRT, ICE, AND/OR FOREIGN MATERIAL FROM A PISTON, RAM, OR SLIDING ROD. EXCLUDES PACKING, PREFORMED; RING, PISTON; AND SEAL RING, METAL.
 |