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 6610-01-046-1117
NSN 5855-01-261-5495
NSN 5996-01-209-3164
NSN 5965-00-577-1242
NSN 6685-01-410-7583
NSN 6610-01-466-6338
NSN 6105-01-215-1174
NSN 5935-01-030-8394
NSN 6645-00-849-4429
NSN 5945-01-023-3492
NSN 6135-01-230-4399
NSN 5925-00-574-4362