NSN Search by National Stock Number

Search the MCRL (Master Cross-Reference List) provided by the FLIS (Federal Logistics Information Service) through the DLA (Defense Logistics Agency) of the DOD (Department of Defense). FLIS provides this data through their WebFLIS and FEDLOG products, but these are not available for public use. This free NSN Search provides NSN lookup of the Military NSN Database by National Stock Number.

The NSN Lookup search engine allows you to easily search for National Stock Numbers (NSN) over all of the catalogs and databases available within NATO for public use:

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4820-00-026-0456 SEAT,VALVE
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BODY INSIDE DIAMETER
2.335 INCHES MINIMUM AND 2.345 INCHES MAXIMUM
BODY OUTSIDE DIAMETER
2.367 INCHES MINIMUM AND 2.371 INCHES MAXIMUM
FLANGE DIAMETER
2.850 INCHES MINIMUM AND 2.851 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT
0.436 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
HARDNESS RATING
90.0 ROCKWELL B MINIMUM BODY AND 105.0 ROCKWELL B MAXIMUM BODY
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