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 5855-01-100-3272
NSN 5999-01-451-4312
NSN 6110-01-459-9022
NSN 5930-01-118-9717
NSN 5895-00-596-8678
NSN 2925-01-600-2309
NSN 6145-01-431-7767
NSN 5835-00-707-6266
NSN 2925-00-845-1480
NSN 6645-01-171-4528
NSN 5990-01-057-4191
NSN 5935-01-205-3700