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 6610-00-010-3085
NSN 7035-01-553-2011
NSN 6135-01-417-6539
NSN 5998-01-398-0673
NSN 6685-01-460-2321
NSN 5895-01-347-3672
NSN 5998-01-384-4396
NSN 5920-01-313-8430
NSN 5925-00-403-6282
NSN 6105-00-253-3828
NSN 5960-00-121-9926
NSN 5998-01-628-6343