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 7035-00-763-6180
NSN 6645-01-056-9296
NSN 5945-00-024-1102
NSN 6645-00-010-3054
NSN 5895-01-658-7840
NSN 6105-01-254-2722
NSN 5925-01-170-4150
NSN 6105-01-280-3460
NSN 6645-00-960-6594
NSN 5930-00-233-7356
NSN 5910-01-549-8572
NSN 6610-01-660-3966