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 5999-01-399-0271
NSN 6610-01-180-7558
NSN 6685-01-229-6512
NSN 5999-00-149-0624
NSN 6110-01-357-6357
NSN 5920-00-133-4276
NSN 5999-01-517-5450
NSN 5930-01-076-7671
NSN 5965-01-523-8737
NSN 5930-01-184-3048
NSN 5950-00-209-9233
NSN 6130-00-170-4062