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 6220-00-956-0565
NSN 6130-01-641-5436
NSN 5930-00-246-6314
NSN 5996-00-415-2160
NSN 5920-01-045-1484
NSN 6620-00-858-7317
NSN 5835-00-987-9341
NSN 6130-01-586-9402
NSN 6145-01-158-6329
NSN 5998-01-113-7997
NSN 6645-01-647-3723
NSN 6150-00-161-6865