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 5950-00-530-5275
NSN 6645-01-605-1485
NSN 5920-01-123-9854
NSN 5835-01-171-5368
NSN 2925-01-540-7389
NSN 5925-00-960-5214
NSN 5965-01-061-6871
NSN 6220-01-421-4448
NSN 6220-00-559-3555
NSN 5996-01-130-5128
NSN 5960-01-162-6166
NSN 6110-01-510-4595