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 6105-01-415-2339
NSN 5835-01-150-6084
NSN 5990-01-304-7597
NSN 6650-01-126-3101
NSN 5990-01-118-8624
NSN 6240-01-599-2679
NSN 6135-01-441-7922
NSN 5975-01-415-0918
NSN 6145-01-394-3122
NSN 4140-00-911-1485
NSN 5895-01-416-6243
NSN 5855-00-688-9954