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 5855-01-279-9938
NSN 5835-01-426-6573
NSN 6105-01-401-5361
NSN 6105-00-411-8585
NSN 6685-01-352-4564
NSN 5915-00-150-0502
NSN 2925-01-355-5280
NSN 5990-01-498-0641
NSN 4140-01-533-0010
NSN 5945-01-271-5375
NSN 5998-01-109-8407
NSN 6105-01-138-7874