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 5905-01-207-2420
NSN 5910-00-426-7536
NSN 6110-01-087-0439
NSN 6110-01-124-1546
NSN 6685-01-535-7268
NSN 6320-00-394-8458
NSN 5960-00-253-7815
NSN 5950-00-144-4139
NSN 6105-01-421-2644
NSN 5965-01-501-5638
NSN 5925-01-305-8589
NSN 5835-01-373-3498