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 7035-01-534-7829
NSN 5895-00-642-8637
NSN 6110-01-444-3302
NSN 5960-01-462-6267
NSN 6145-01-206-3539
NSN 5998-01-160-9483
NSN 5935-01-403-2844
NSN 5915-01-609-6955
NSN 5925-00-068-6736
NSN 7035-01-027-1718
NSN 5999-01-652-7227
NSN 5960-01-030-5345