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 6320-01-029-4220
NSN 6130-01-057-1861
NSN 2925-00-246-3077
NSN 6145-01-035-1019
NSN 5950-00-107-5409
NSN 6685-00-517-7132
NSN 6220-01-618-4432
NSN 6135-01-048-0910
NSN 7035-01-110-2567
NSN 5835-01-200-7153
NSN 6610-00-976-3935
NSN 5985-01-438-1459