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 6610-01-364-0294
NSN 6110-00-512-7845
NSN 6105-00-527-8571
NSN 5925-01-094-3659
NSN 6620-01-016-8264
NSN 5965-01-251-9480
NSN 6150-01-235-5930
NSN 5920-01-519-8835
NSN 6110-00-419-9810
NSN 6130-01-160-7772
NSN 5910-01-197-2848
NSN 5965-00-985-4152