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 5999-01-338-3808
NSN 6620-00-267-5273
NSN 5985-01-062-1328
NSN 6610-01-141-7014
NSN 6105-01-475-2323
NSN 5855-01-364-8193
NSN 5975-00-644-4972
NSN 6110-01-298-6847
NSN 5945-00-244-1579
NSN 6150-01-069-3494
NSN 4140-00-935-5360
NSN 5965-00-103-5000