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 5950-00-921-5714
NSN 5965-01-148-4979
NSN 6685-00-608-3295
NSN 6135-01-608-2355
NSN 5895-00-740-0386
NSN 5935-01-482-7876
NSN 5975-01-384-7912
NSN 5925-01-102-4037
NSN 5835-00-327-6192
NSN 6610-01-200-6861
NSN 6110-01-418-2578
NSN 5905-00-469-5619