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 5945-00-820-6373
NSN 6240-00-066-5484
NSN 6110-01-052-4963
NSN 5945-01-464-2505
NSN 5996-00-803-0212
NSN 5930-00-868-4292
NSN 5910-01-392-6379
NSN 5925-00-525-4037
NSN 5965-00-267-4173
NSN 5835-01-384-3206
NSN 5905-01-253-8525
NSN 5905-01-364-1324