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 5905-01-079-2341
NSN 5855-00-631-4565
NSN 5935-01-386-3736
NSN 5999-01-006-9942
NSN 5996-01-391-4746
NSN 5999-00-101-2284
NSN 5985-01-095-5569
NSN 5990-01-606-1873
NSN 5935-01-532-6500
NSN 5975-00-819-1861
NSN 5996-00-379-5538
NSN 6150-01-377-5490