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 5835-00-949-3018
NSN 5925-01-448-6384
NSN 5965-01-018-0746
NSN 6130-01-491-2994
NSN 6620-01-162-0220
NSN 5985-00-197-5392
NSN 5855-00-245-8461
NSN 6150-00-754-7389
NSN 5915-01-398-9831
NSN 6220-01-025-1373
NSN 6150-00-979-7728
NSN 5855-00-337-3679