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 5996-01-023-0537
NSN 6105-01-285-7530
NSN 5950-01-389-2434
NSN 6620-01-169-2406
NSN 5910-01-059-5495
NSN 6145-01-220-8862
NSN 6320-00-894-1644
NSN 6130-01-359-9321
NSN 6685-00-357-1102
NSN 6645-01-455-1293
NSN 5999-01-589-6184
NSN 7035-01-122-1264