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 5835-01-545-5689
NSN 6105-01-197-2901
NSN 5960-00-201-5265
NSN 6110-00-061-2097
NSN 6645-00-527-6531
NSN 5920-01-022-1297
NSN 5920-01-123-9358
NSN 6110-00-248-7475
NSN 6145-01-147-4968
NSN 6610-01-298-8667
NSN 5905-01-014-5472
NSN 5855-00-560-0110