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 2925-01-554-5246
NSN 6110-01-444-3302
NSN 5975-01-064-7232
NSN 5960-00-110-7348
NSN 5945-00-346-3646
NSN 6685-01-268-6735
NSN 6220-00-401-4648
NSN 6610-00-553-5103
NSN 5996-01-289-5704
NSN 5915-00-069-5565
NSN 5920-01-345-5433
NSN 5950-01-555-6908