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 5975-01-281-8347
NSN 6240-00-372-4841
NSN 5905-00-350-6247
NSN 5975-00-690-9061
NSN 5945-01-559-2486
NSN 5985-01-463-8562
NSN 5965-01-167-8513
NSN 6685-01-626-2072
NSN 7035-00-870-0290
NSN 5895-01-375-9275
NSN 5835-00-280-8494
NSN 6110-01-601-1205