3120-00-618-0727 BEARING,SLEEVE Index 5330-00-618-0729 PACKING ASSEMBLY

National Stock Number:
5330-00-618-0728

Federal Supply Class:
5330

National Item Identification Number:
006180728

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:
593-518-1862427PC781316PORTSMOUTH NAVAL SHIPYARD


Techincal Specification:
CENTER HOLE DIAMETER6.750 INCHES NOMINAL
CROSS-SECTIONAL THICKNESS0.188 INCHES NOMINAL
CROSS-SECTIONAL HEIGHT0.875 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLEU
MATERIALRUBBER SYNTHETIC OVERALL
PERIPHERAL DIAMETER8.281 INCHES NOMINAL


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