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 6320-00-070-4544
NSN 5905-01-551-4013
NSN 6320-01-343-8191
NSN 5998-01-415-9121
NSN 5920-01-128-3572
NSN 6320-00-394-8458
NSN 5910-01-254-0864
NSN 5915-00-117-7066
NSN 6685-01-550-4930
NSN 6130-01-276-1956
NSN 5945-01-073-0759
NSN 5895-00-863-9809