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 6610-01-371-5039
NSN 6110-01-192-9200
NSN 5960-01-237-8995
NSN 6145-00-161-0918
NSN 6110-01-415-2326
NSN 5965-00-182-7928
NSN 5975-00-966-4323
NSN 6105-01-531-4751
NSN 5910-00-618-0196
NSN 5985-01-147-5470
NSN 5855-01-085-5354
NSN 6130-01-220-5264