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 5960-00-586-5292
NSN 6220-01-292-0980
NSN 6685-00-003-9565
NSN 6645-01-206-4888
NSN 5895-00-862-5564
NSN 5905-01-425-1366
NSN 5895-00-103-9387
NSN 5910-00-853-6500
NSN 6320-00-688-9983
NSN 6110-00-980-1747
NSN 5925-01-605-3888
NSN 5945-01-171-7397