4820-00-449-1949 VALVE,REGULATING,FLUID PRESSURE Index 2915-00-449-1951 VALVE,CHECK

National Stock Number:
5999-00-449-1950

Federal Supply Class:
5999

National Item Identification Number:
004491950

Description:
SHIELDING GASKET,ELECTRONIC

Detail:
A SHAPED METALLIC ITEM DESIGNED TO INCREASE THE EFFECTIVENESS OF RADIO FREQUENCY/ELECTROMAGNETIC INTERFERENCE, OR A NONMETALLIC ITEM CONTAINING A WIRE MESH, METAL, OR OTHER ELECTRICALLY CONDUCTIVE PARTICLES DESIGNED TO PROVIDE ENVIRONMENTAL SEALING AND RADIO FREQUENCY/ELECTROMAGNETIC INTERFERENCE SHIELDING. FOR BULK ITEMS SEE WIRE MESH, KNITTED OR GASKETING MATERIAL, CONDUCTIVE.


Manufacturer Information:
K42C0103-112464MCDONNELL DOUGLAS CORP MCDONNELL DOUGLAS ELECTRONIC SYSTEMS CO


Techincal Specification:
APERTURE WIDTH12.990 INCHES NOMINAL
APERTURE LENGTH12.490 INCHES NOMINAL
BOLT HOLE QUANTITY4
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH5.630 INCHES NOMINAL
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH5.250 INCHES NOMINAL
CROSS-SECTIONAL THICKNESS0.062 INCHES NOMINAL
ENVIRONMENTAL PROTECTION MATERIAL LOCATIONAROUND RF SHIELDING GASKET OUTER PERIMETER
HOLE DIAMETER0.250 INCHES NOMINAL
INSIDE CORNER RADIUS0.125 INCHES NOMINAL
OUTSIDE CORNER RADIUS0.312 INCHES NOMINAL
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH0.380 INCHES NOMINAL
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG WIDTH0.380 INCHES NOMINAL
OVERALL LENGTH14.000 INCHES NOMINAL
OVERALL WIDTH14.500 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE EMI/RFI CONDUCTOR
MATERIALNICKEL ALLOY 400 EMI/RFI CONDUCTOR
MATERIALRUBBER SYNTHETIC ENVIRONMENTAL SEAL


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