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 6105-01-447-2614
NSN 5950-01-452-6325
NSN 7035-00-973-9215
NSN 6610-01-378-8422
NSN 5996-00-035-5624
NSN 5835-00-958-6231
NSN 5996-01-227-3005
NSN 6645-01-192-4079
NSN 6620-01-157-9267
NSN 5905-01-536-3897
NSN 5895-00-400-5461
NSN 5925-01-330-0491