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 5965-01-421-1244
NSN 5990-01-400-3299
NSN 5895-00-482-0013
NSN 5975-00-015-6012
NSN 5960-01-323-3143
NSN 5999-01-500-9483
NSN 6645-00-927-8207
NSN 5965-01-645-5719
NSN 6110-00-983-8266
NSN 5998-01-533-6307
NSN 5965-01-436-0390
NSN 5935-00-088-6775