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 6105-01-209-6888
NSN 5945-01-608-5558
NSN 2925-01-327-3069
NSN 6220-00-912-0226
NSN 5965-01-232-6509
NSN 6220-01-297-3218
NSN 5985-00-554-9730
NSN 6105-01-089-1325
NSN 6645-00-903-1696
NSN 5935-00-929-6123
NSN 7035-01-408-6802
NSN 6685-00-504-1911