National Item Identification Number
01-505-6849
015056849
5330-01-505-6849
5330015056849
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)
83259
Reference Numbers (Part Numbers)
M8791/1-223
Required Categories
III END ITEM IDENTIFICATION
Required Description
C130J AIRCRAFT
