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 6240-01-085-6576
NSN 5925-01-461-8294
NSN 5975-01-152-1266
NSN 5960-01-288-8910
NSN 6320-01-173-7950
NSN 5835-01-014-4574
NSN 6110-01-542-8263
NSN 5996-00-548-3213
NSN 5999-01-605-0465
NSN 6130-00-874-4578
NSN 6130-00-156-3029
NSN 6105-01-214-9847