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 5905-00-702-4522
NSN 5998-01-086-1395
NSN 6145-00-478-0261
NSN 5960-01-539-1956
NSN 6320-00-242-3300
NSN 6135-00-968-8594
NSN 5960-00-804-5405
NSN 5950-01-026-6004
NSN 5910-01-147-4902
NSN 6110-01-208-3448
NSN 6610-01-418-0678
NSN 5965-01-536-6730