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 6145-00-286-9588
NSN 5895-00-863-4146
NSN 6685-00-044-6034
NSN 6610-00-872-7600
NSN 6110-00-973-0416
NSN 5920-01-534-4942
NSN 6150-01-451-1114
NSN 6685-00-244-4974
NSN 5999-01-275-3468
NSN 6220-00-853-2564
NSN 5960-00-932-3067
NSN 6130-00-635-3867