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 6110-01-127-5837
NSN 6610-01-136-4866
NSN 5996-01-067-8716
NSN 6220-01-514-7024
NSN 5930-00-268-1941
NSN 6220-01-570-6975
NSN 5965-01-145-3732
NSN 5950-01-069-3861
NSN 6685-01-322-4323
NSN 5935-01-578-6930
NSN 5985-00-977-1248
NSN 6320-01-309-4407