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 5920-01-085-4339
NSN 5835-00-933-9609
NSN 5960-00-519-8675
NSN 6685-00-153-3914
NSN 6220-00-978-3172
NSN 5985-01-088-5221
NSN 5998-01-622-4315
NSN 6320-01-267-7990
NSN 6105-01-570-3821
NSN 5990-00-586-6435
NSN 5895-01-597-7360
NSN 5960-00-636-4834