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 6110-01-534-3881
NSN 5985-01-124-3507
NSN 6220-00-682-8292
NSN 2925-01-462-1620
NSN 6685-01-279-0647
NSN 5915-01-567-1928
NSN 5990-00-010-8186
NSN 5950-00-466-8156
NSN 5960-00-170-9614
NSN 5915-01-445-6577
NSN 5895-00-231-4233
NSN 6220-01-449-2014