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 5965-00-529-0602
NSN 5985-01-466-1331
NSN 6130-01-227-4485
NSN 5915-00-566-3178
NSN 5965-01-201-1580
NSN 5965-01-497-5696
NSN 5915-00-166-3226
NSN 6240-00-785-8398
NSN 6110-00-126-4875
NSN 7035-01-232-7263
NSN 5915-00-816-6866
NSN 5998-01-224-5542