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 5930-01-197-2253
NSN 6220-01-359-3993
NSN 6130-01-278-1500
NSN 5930-01-153-2667
NSN 6135-01-416-8342
NSN 6150-01-391-1867
NSN 5910-00-360-2334
NSN 2925-01-381-5307
NSN 5975-01-306-0832
NSN 5895-01-461-5442
NSN 6220-01-593-8286
NSN 6130-01-026-9415