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 5895-01-492-5339
NSN 7035-01-145-9164
NSN 5985-00-988-5268
NSN 5950-01-007-6587
NSN 6220-01-455-1335
NSN 6610-00-945-6782
NSN 6105-01-310-3401
NSN 6110-01-611-5321
NSN 6220-00-812-0515
NSN 5835-01-647-6426
NSN 5905-01-499-1031
NSN 6685-00-013-9969