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 6685-01-032-4752
NSN 6685-00-203-4485
NSN 2925-01-538-1343
NSN 6685-01-502-9028
NSN 6130-01-450-2776
NSN 5945-01-054-0213
NSN 5950-00-233-5317
NSN 6135-01-620-1306
NSN 6610-00-715-2776
NSN 5965-01-079-7939
NSN 5965-00-396-3411
NSN 2925-01-391-1540