National Stock Number
6640-15-121-8710
National Stock Number (NSN) 6640-15-121-8710, or NIIN 151218710, (joint,ring seal,laboratory glassware) has an unknown assigned date. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 58637. [(ALL EXCEPT USA) A NONGROUND JOINT, SPHERICAL IN SHAPE, PRECISION TOOLED FOR AN O-RING SEAL, FOR USE AS A GREASELESS VACUUM-TIGHT CONNECTOR. EXCLUDES:CONNECTOR (AS MODIFIED); AND GROUND JOINT, LABORATORY GLASSWARE.].
This information was last updated on Jan 09, 2026.