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 6145-01-473-4144
NSN 5985-00-057-7983
NSN 5910-00-269-4755
NSN 5905-01-177-4613
NSN 5905-01-592-2456
NSN 6105-00-128-9951
NSN 6240-01-406-5345
NSN 5965-01-431-7377
NSN 5990-01-525-2250
NSN 6130-01-104-3424
NSN 5985-01-555-8057
NSN 6685-00-479-3490