National Item Identification Number
01-505-8024
015058024
5330-01-505-8024
5330015058024
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)
09257
Reference Numbers (Part Numbers)
S33157-213-99
S33157-213-99
Required Categories
MATERIAL
CROSS-SECTIONAL SHAPE STYLE
III END ITEM IDENTIFICATION
III PART NAM
Required Description
PLASTIC
1 SOLID
B-2 BOMBER AIRCRAFT
RING,BACKUP
0.052 INCHES MINIMUM AND
0.