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 5895-01-082-5633
NSN 7035-01-344-8708
NSN 6110-01-104-4777
NSN 6110-00-683-1022
NSN 5920-00-221-4556
NSN 6620-00-273-8735
NSN 6645-01-456-5011
NSN 5905-01-649-0410
NSN 5990-01-616-5242
NSN 6620-00-090-1601
NSN 2925-01-055-7607
NSN 6240-00-103-6646