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 4140-01-059-2095
NSN 5990-01-113-8121
NSN 6105-01-013-8917
NSN 6220-00-793-3167
NSN 6135-01-373-2518
NSN 7035-00-521-6423
NSN 5965-00-393-1294
NSN 6110-00-422-4973
NSN 7035-01-018-6589
NSN 5999-00-498-2754
NSN 6685-01-069-3639
NSN 5999-01-462-1292