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 6130-01-074-5735
NSN 6620-01-502-5083
NSN 7035-01-070-7015
NSN 5910-01-544-4410
NSN 5915-01-307-8854
NSN 5975-01-251-4181
NSN 5999-01-418-8431
NSN 5975-01-619-0108
NSN 5915-01-028-3912
NSN 5965-01-006-7915
NSN 6610-01-383-4458
NSN 5996-01-660-4170