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 6685-00-540-9017
NSN 5996-00-277-7384
NSN 5975-01-100-1063
NSN 6135-01-271-7151
NSN 5920-00-120-9347
NSN 2925-01-503-4386
NSN 6135-01-010-0891
NSN 5925-01-295-0612
NSN 6110-01-457-2120
NSN 5895-01-504-6709
NSN 5998-01-256-0327
NSN 6220-01-117-1793