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.
Classification: Gaskets,washers & other seals
NSN 5895-00-647-4969
NSN 5990-00-067-6791
NSN 5930-00-501-0070
NSN 5935-00-161-3429
NSN 5950-01-057-5772
NSN 5920-00-834-0616
NSN 5985-00-147-9452
NSN 2925-00-441-8252
NSN 6130-01-094-5368
NSN 6110-01-570-2556
NSN 5835-00-695-9543
NSN 5910-01-104-4861