National Item Identification Number
01-525-4400
015254400
5330-01-525-4400
5330015254400
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)
1QXJ8
SAINT-GOBAIN PERFORMANCE PLASTICS
CORPORATION
460 MILLTOWN ROAD
BRIDGEWATER
NJ
08807
908-218-8888
94259
WESTINGHOUSE ELECTRIC CORP
BETTIS ATOMIC POWER LABORATORY
814 PITTSBURGH MCKEESPORT BLVD
79
WEST MIFFLIN
PA
15122
412-476-5090
Reference Numbers (Part Numbers)
055-031-55
9035C35-8
Required Categories
SPECIAL FEATURES
CROSS-SECTIONAL THICKNESS
CROSS-SECTIONAL HEIGHT
CENTER HOLE
Required Description
MATERIAL IS FURON OMNISEAL, MUST MEET MIL-STD-2041
0.050 INCHES NOMINAL
0.060