National Item Identification Number
01-501-1385
015011385
5330-01-501-1385
5330015011385
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)
96169
53711
Reference Numbers (Part Numbers)
H643-7002-157
342-7067321-157
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
CROSS-SECTIONAL SHAPE STYLE
SPE
Required Description
PLASTIC POLYTETRAFLUOROETHYLENE
81364/ASTM-D3293 TY II S/S BY ASTM-D3294 TY II
