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 5950-01-294-6692
NSN 5905-01-134-5241
NSN 5975-01-191-5226
NSN 5996-00-032-3592
NSN 6620-01-552-9024
NSN 6685-01-395-5227
NSN 6145-00-181-9622
NSN 5999-00-863-3750
NSN 6240-01-252-9374
NSN 5965-01-475-0666
NSN 6105-01-449-6552
NSN 5910-00-706-9389