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 6685-00-286-8481
NSN 5910-01-483-3618
NSN 5960-00-126-4729
NSN 5945-00-573-7220
NSN 2925-01-208-6638
NSN 6610-01-376-9199
NSN 5910-01-167-2143
NSN 2925-01-088-9016
NSN 5990-01-355-3239
NSN 5990-01-555-6616
NSN 5910-01-648-4656
NSN 6685-01-311-3855