For use on blood cells counter, mdl 131 series
No other part numbers with same form, fit, and function found.
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 5895-01-497-2260
NSN 5999-01-528-6154
NSN 5910-01-252-5652
NSN 5930-01-014-7897
NSN 5950-00-377-3774
NSN 6650-01-513-2644
NSN 5965-00-232-7395
NSN 5930-01-030-6264
NSN 6685-01-127-1234
NSN 5905-00-707-5032
NSN 5945-01-576-1037
NSN 6240-01-601-1617