National Item Identification Number
01-534-1719
015341719
5330-01-534-1719
5330015341719
National Stock Number
Item Name
BACK-UP RING,PREFORMED PACKING
Federal Supply Class
5330
Description
A circular shaped item with an aperture manufactured to predetermined dimensions, constructed with a rectangular cross section that may be solid, with joint, or in a helical form that facilitates spiral wrap installation. It prevents seal extrusion under pressure and is designed to fit on the down-pressure side of a gland groove with a PACKING, PREFORMED or O-RING.
Commercial and Government Entity Code (Supplier Data)
5F573
Reference Numbers (Part Numbers)
734C7MS-161-N
Required Categories
III PART NAME ASSIGNED BY CONTROLLING AGENCY
Required Description
AGT RING
