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 6110-01-101-6722
NSN 5950-01-250-3687
NSN 5905-01-030-9172
NSN 5855-01-534-3724
NSN 6130-01-455-7791
NSN 6240-01-079-8645
NSN 6610-00-805-0021
NSN 6610-00-449-2703
NSN 5965-00-067-7393
NSN 6130-01-450-4598
NSN 6220-00-462-8204
NSN 5930-01-449-1668