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 5835-01-416-6455
NSN 6685-01-396-4080
NSN 6620-00-400-4237
NSN 6220-01-168-7773
NSN 5950-00-088-8709
NSN 5985-01-233-0512
NSN 5905-00-919-0160
NSN 5965-00-004-6371
NSN 6685-00-455-3729
NSN 5945-01-612-6219
NSN 5910-01-108-1800
NSN 5925-01-393-9839