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 5996-01-566-0344
NSN 6130-00-887-1300
NSN 5855-00-455-6070
NSN 5920-01-573-7227
NSN 6620-01-025-8331
NSN 5930-01-586-5237
NSN 5975-01-487-4379
NSN 5930-01-445-0373
NSN 6130-01-510-3791
NSN 6240-01-105-1399
NSN 6110-01-014-3840
NSN 5895-01-207-0036