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 7035-00-108-4421
NSN 5945-01-371-8912
NSN 5965-00-281-0319
NSN 6130-01-149-7595
NSN 6685-01-439-3564
NSN 5945-00-631-7486
NSN 5895-00-363-1486
NSN 6130-00-037-9625
NSN 5960-01-497-4572
NSN 6105-01-097-6160
NSN 5925-01-014-1222
NSN 6130-01-579-3433