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 6110-01-116-9440
NSN 6130-00-984-3035
NSN 6240-01-096-0573
NSN 7035-01-646-7889
NSN 6610-01-387-0676
NSN 6685-00-377-3497
NSN 2925-00-816-8765
NSN 6110-01-472-1963
NSN 5965-01-053-1758
NSN 5925-01-562-1980
NSN 5960-01-437-5318
NSN 6150-01-464-4299