5331-00-141-4239 O-RING Index 5330-00-141-4255 RETAINER,PACKING

National Stock Number:
5330-00-141-4243

Federal Supply Class:
5330

National Item Identification Number:
001414243

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:
1416123-PC 553711NAVAL SEA SYSTEMS COMMAND
572-3801-1416123REVAPC580064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
CENTER HOLE DIAMETER19.500 INCHES NOMINAL
CROSS-SECTIONAL HEIGHT1.294 INCHES MINIMUM AND 1.304 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLEU
HARDNESS RATING71.0 SHORE DUROMETER A MINIMUM AND 78.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIALRUBBER SYNTHETIC OVERALL
PERIPHERAL DIAMETER20.870 INCHES MINIMUM AND 20.880 INCHES MAXIMUM


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