5331-01-353-2070 O-RING Index 5330-01-353-2072 GASKET

National Stock Number:
5330-01-353-2071

Federal Supply Class:
5330

National Item Identification Number:
013532071

Description:
PACKING,PREFORMED

Detail:
A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see WASHER (as modified) and GASKET. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see SEAL, NONMETALLIC ANGLE; SEAL, NONMETALLIC CHANNEL; and SEAL, NONMETALLIC, SPECIAL SHAPED SECTION. For circular (with aperature) nonmetallic items with a solid round cross-section see O-RING. Excludes CUP, COMPRESSION; GASKET; WASHER (as modified); and FELT, MECHANICAL, PREFORMED.


Manufacturer Information:
CW-2300CW PIECE 62865427DC FABRICATORS INC
CW-556F65427DC FABRICATORS INC


Techincal Specification:
CENTER HOLE DIAMETER54.375 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR
CROSS-SECTIONAL HEIGHT0.230 INCHES MINIMUM AND 0.236 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
PERIPHERAL DIAMETER54.605 INCHES MINIMUM AND 54.645 INCHES MAXIMUM
SPECIAL FEATURESSUPPLIER TO FURNISH RINGS IN STRAIGHT LENGTHS WITH SUFFICIENT OVERLAP FOR A FIFTEEN DEGREE SCARF AT ASSEMBLY


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