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 5975-00-827-7426
NSN 6685-01-330-6733
NSN 5996-01-400-0917
NSN 5950-00-561-3445
NSN 5835-00-137-7945
NSN 5965-01-467-5471
NSN 6645-00-459-3313
NSN 7035-01-104-4349
NSN 2925-01-346-9522
NSN 5999-01-108-9214
NSN 5930-00-728-7822
NSN 5855-01-447-3137