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 5999-01-398-1242
NSN 5965-00-879-3612
NSN 5925-00-930-2265
NSN 5835-00-148-9719
NSN 2925-01-115-0306
NSN 5990-01-411-5930
NSN 5975-01-553-4032
NSN 5998-00-965-0593
NSN 5855-01-023-3727
NSN 6110-01-553-4875
NSN 6645-01-462-3754
NSN 5998-00-250-0400