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 5960-01-138-3337
NSN 5905-01-170-4831
NSN 5945-01-624-2226
NSN 6150-01-033-3000
NSN 5930-01-113-8011
NSN 6145-01-182-5678
NSN 5905-01-296-6008
NSN 6150-00-951-3203
NSN 6220-01-624-8953
NSN 5985-01-545-5885
NSN 5930-01-246-2913
NSN 2925-00-010-9609