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 5998-01-025-9799
NSN 5996-01-549-1157
NSN 5895-00-440-0718
NSN 5950-01-371-7587
NSN 6110-01-198-4580
NSN 6130-01-267-8545
NSN 5999-00-454-8553
NSN 2925-00-891-5959
NSN 6220-01-447-4156
NSN 5985-01-538-3409
NSN 5895-01-421-2187
NSN 5905-00-259-4759