5310-01-068-5528 WASHER,FLAT Index 5330-01-068-5530 O-RING

National Stock Number:
5330-01-068-5529

Federal Supply Class:
5330

National Item Identification Number:
010685529

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:
400-4674851ITEM1253711NAVAL SEA SYSTEMS COMMAND
54-60-082096169ELECTRIC BOAT CORPORATION
54-60-282096169ELECTRIC BOAT CORPORATION


Techincal Specification:
CENTER HOLE DIAMETER7.500 INCHES NOMINAL
HARDNESS RATING90.0 SHORE DUROMETER A NOMINAL OVERALL


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