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 6685-01-573-6443
NSN 5985-01-146-5679
NSN 5855-00-631-4565
NSN 5930-01-100-0384
NSN 6685-00-828-4458
NSN 5990-00-435-9400
NSN 6685-01-406-5348
NSN 5915-01-198-2074
NSN 6685-00-964-2633
NSN 5910-00-474-0816
NSN 6145-01-423-8625
NSN 6240-00-105-4328