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 6110-01-421-2714
NSN 5999-01-056-9035
NSN 5965-00-075-1485
NSN 5920-00-221-8377
NSN 6685-01-014-5336
NSN 6110-01-076-4060
NSN 6320-01-352-5653
NSN 5915-00-338-3375
NSN 6130-00-218-1363
NSN 7035-00-079-7189
NSN 5996-01-410-8292
NSN 6320-01-166-3602