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 5910-01-114-3346
NSN 2925-01-164-9579
NSN 5835-01-116-2369
NSN 6105-01-273-0596
NSN 4140-01-464-9222
NSN 5895-01-610-4223
NSN 5835-01-616-6131
NSN 2925-00-149-0760
NSN 5925-01-444-8043
NSN 5905-00-133-5337
NSN 6320-00-937-5625
NSN 5985-01-081-6416