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 6645-00-684-3424
NSN 5915-01-621-9972
NSN 6135-01-648-2284
NSN 5960-01-411-5899
NSN 5985-00-529-0093
NSN 6610-01-141-7014
NSN 6220-01-367-8711
NSN 5915-00-712-3038
NSN 5930-01-118-2538
NSN 6685-00-870-4782
NSN 5965-00-523-1787
NSN 6645-00-223-8018