National Item Identification Number
01-528-0277
015280277
5330-01-528-0277
5330015280277
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)
96124
Reference Numbers (Part Numbers)
767620-1
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
CROSS-SECTIONAL SHAPE STYLE
SPE
Required Description
PLASTIC
AMS3666 ASSN STD SINGLE MATERIAL RESPONSE
1 SOLID
SURFACES SHALL BE F