National Item Identification Number
01-526-1376
015261376
5330-01-526-1376
5330015261376
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)
98897
Reference Numbers (Part Numbers)
LS4564-7
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
CROSS-SECTIONAL SHAPE STYLE
CRO
Required Description
PLASTIC POLYTRIFLUOROETHYLENE
AMS3651 ASSN STD SINGLE MATERIAL RESPONSE
2 SING