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 5996-01-469-6094
NSN 5960-01-249-2602
NSN 5999-01-517-3484
NSN 5950-00-100-1345
NSN 5985-00-168-8779
NSN 5975-00-617-7138
NSN 6130-01-274-9444
NSN 5935-01-356-4273
NSN 5910-01-033-9606
NSN 6220-01-003-9126
NSN 6130-01-608-1853
NSN 6130-01-146-4687