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 5950-01-093-0827
NSN 7035-01-227-2546
NSN 6685-00-146-2308
NSN 6650-01-584-1102
NSN 5910-01-396-0158
NSN 5985-01-577-5973
NSN 6105-01-631-2918
NSN 5965-01-136-1553
NSN 5925-00-717-6319
NSN 2925-01-604-8984
NSN 6645-01-579-4247
NSN 5905-01-207-0907