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 5975-00-958-2019
NSN 5910-01-425-8838
NSN 5835-00-679-9769
NSN 6130-00-662-8557
NSN 5925-01-157-5501
NSN 5945-01-191-9858
NSN 5895-01-207-0753
NSN 5945-01-253-4299
NSN 5910-01-336-5332
NSN 5905-00-933-7589
NSN 5910-00-869-8731
NSN 5985-00-336-1095