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 6105-00-468-0267
NSN 5915-01-414-0049
NSN 5895-01-376-4698
NSN 6105-00-228-1160
NSN 6620-01-460-2788
NSN 5965-00-064-8209
NSN 5935-00-411-2508
NSN 5915-01-454-0459
NSN 5985-00-067-3324
NSN 5925-00-299-2728
NSN 5920-00-333-4633
NSN 2925-00-837-3948