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 5895-01-056-1126
NSN 6645-01-005-8622
NSN 5996-01-310-6240
NSN 4140-01-536-7401
NSN 6610-01-010-3159
NSN 6105-01-540-6031
NSN 4140-01-478-3897
NSN 5835-00-553-3575
NSN 5998-01-630-6386
NSN 5925-00-217-6381
NSN 5985-01-399-7269
NSN 5998-01-487-6993