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 5925-01-376-0782
NSN 6110-01-231-8683
NSN 5965-01-415-3865
NSN 5910-01-456-4633
NSN 5895-01-140-1048
NSN 6150-00-205-0582
NSN 6240-00-443-4944
NSN 7035-01-315-9754
NSN 7035-00-703-3535
NSN 6130-01-281-3746
NSN 6105-00-952-0568
NSN 5835-01-537-1228