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 2925-01-442-7812
NSN 6110-01-275-4320
NSN 5905-00-221-3766
NSN 7035-01-052-3815
NSN 6105-01-004-1010
NSN 6645-00-067-7070
NSN 5950-01-198-2533
NSN 5905-01-030-9757
NSN 5960-00-962-5391
NSN 5915-01-291-1775
NSN 5835-01-495-5986
NSN 5895-01-487-5601