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 6610-01-332-9556
NSN 6320-01-513-9166
NSN 5835-01-216-5639
NSN 5835-00-198-4936
NSN 2925-01-604-8984
NSN 6620-00-355-1734
NSN 6130-00-045-9897
NSN 6130-01-515-7149
NSN 7035-01-187-6002
NSN 5965-00-289-6280
NSN 5935-00-710-1717
NSN 5905-00-218-0552