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 5930-01-100-3343
NSN 6620-01-008-8037
NSN 6145-00-814-1215
NSN 6110-00-980-9292
NSN 5935-01-364-0161
NSN 6610-01-112-0447
NSN 5996-01-249-3215
NSN 6610-01-319-5039
NSN 6685-00-757-3402
NSN 5935-01-341-8515
NSN 6110-00-215-8585
NSN 5965-01-533-1374