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 6105-01-515-0613
NSN 6620-00-236-2048
NSN 5895-01-038-1237
NSN 5999-01-152-2313
NSN 7035-00-185-8683
NSN 6610-00-248-1559
NSN 6135-00-803-3012
NSN 5985-00-079-0598
NSN 6685-00-313-9239
NSN 5910-01-458-7014
NSN 6320-01-513-9166
NSN 6105-01-420-5624