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 5905-01-469-6376
NSN 5935-00-518-1754
NSN 5950-00-152-9567
NSN 5945-00-977-2909
NSN 5965-01-088-1761
NSN 5895-01-622-5650
NSN 6320-01-268-3072
NSN 6110-01-577-5947
NSN 7035-00-679-9027
NSN 5935-01-525-8718
NSN 5910-01-456-5232
NSN 6320-01-466-4175