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 2925-01-582-2482
NSN 5905-01-339-8424
NSN 5975-01-302-8991
NSN 5910-01-231-9628
NSN 5985-00-786-3185
NSN 5920-01-019-6270
NSN 5990-00-964-9672
NSN 5975-01-180-4036
NSN 5990-01-307-4489
NSN 5999-01-053-2539
NSN 5999-00-382-3505
NSN 5925-01-426-6923