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 5905-01-492-2365
NSN 6150-01-152-3517
NSN 5996-00-107-5357
NSN 6150-01-634-0575
NSN 6320-01-335-8336
NSN 5835-01-013-9321
NSN 5910-00-470-2772
NSN 5975-01-476-9020
NSN 6650-00-205-6282
NSN 7035-01-438-2108
NSN 5895-01-656-0775
NSN 5835-01-391-4556