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 5925-01-627-5810
NSN 5835-01-354-0566
NSN 6645-00-163-9580
NSN 7035-01-379-3795
NSN 6220-01-593-8778
NSN 6135-00-078-9931
NSN 5855-01-464-3152
NSN 6645-00-609-7214
NSN 6130-01-184-3225
NSN 5965-01-373-8858
NSN 5920-01-393-8264
NSN 5985-00-776-3159