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 5835-00-233-6327
NSN 5835-01-321-2906
NSN 5996-00-829-2025
NSN 5965-01-466-1154
NSN 5960-01-294-2397
NSN 5925-01-432-1698
NSN 5925-01-372-0863
NSN 5925-00-051-4892
NSN 5895-01-039-2353
NSN 6220-01-427-2333
NSN 6220-00-350-2807
NSN 6150-01-565-8611