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 6150-01-267-3302
NSN 5950-01-091-8011
NSN 5905-01-060-6626
NSN 5998-01-440-4823
NSN 5925-00-374-4852
NSN 6685-01-573-5841
NSN 6110-01-015-2866
NSN 6145-01-093-4985
NSN 5905-01-350-4304
NSN 6105-01-082-3101
NSN 6135-00-369-2368
NSN 6135-01-342-3859