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 5985-00-513-3420
NSN 5945-01-416-2795
NSN 6105-01-334-3266
NSN 6150-01-423-8870
NSN 5910-01-605-7651
NSN 5935-01-438-7409
NSN 6105-01-349-8588
NSN 5855-01-446-7221
NSN 6240-01-441-0027
NSN 6685-01-312-8561
NSN 5945-00-296-8464
NSN 5975-01-655-6859