National Stock Number
6635-00-449-3750
National Stock Number (NSN) 6635-00-449-3750, or NIIN 004493750, (tester,spring resiliency) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 6635007947620.
There are 3 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries.
This NSN is assigned to Item Name Code (INC) 13502. [AN APPARATUS, DEVICE, OR INSTRUMENT WHICH IS SPECIFICALLY DESIGNED FOR TESTING SPRING RESILIENCY BY SUBJECTION TO THE DESIRED STRAIN AND INDICATING THIS FORCE IN UNITS OF WEIGHT. INDICATION MAY BE BY MEANS OF A DIAL, GRADUATED SCALE, A PRESSURE GAGE, A WEIGHING SCALE, OR BY THE GRADUATED SCALE OF A TORQUE INDICATOR WRENCH. THE FORCE MAY BE APPLIED MECHANICALLY, HYDRAULICALLY, OR MANUALLY. MAY HAVE A FIXED OR ADJUSTABLE PLATFORM LOAD RECEIVER. EXCLUDES:SCALE (AS MODIFIED).]. This item does not have a nuclear hardened feature but does have other critical feature(s) such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 6635004493750 contains an unknown precious metal.
This NSN is associated to Schedule B 9027509000: instrument and apparatus for physical or chemical analysis using optical radiations, nesoi. The Schedule B End Use is listed as laboratory testing instruments. NAICS classification category 334516: analytical laboratory instrument manufacturing.
This information was last updated on Jul 01, 2025.