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 5945-01-424-9421
NSN 5905-01-537-0022
NSN 2925-00-964-7128
NSN 6105-01-278-9220
NSN 5975-01-386-3061
NSN 7035-01-399-5354
NSN 5965-00-997-5764
NSN 2925-01-583-5619
NSN 5835-00-905-7165
NSN 5985-01-423-0581
NSN 5925-01-480-0730
NSN 5920-01-059-0894