5999-01-422-2555 RELAY-SWITCH Index 5961-01-422-2557 SEMICONDUCTOR DEVICE,DIODE

National Stock Number:
5999-01-422-2556

Federal Supply Class:
5999

National Item Identification Number:
014222556

Description:
MOUNTING PAD,ELECTRICAL-ELECTRON

Detail:
AN ITEM FABRICATED FROM ELECTRICALLY NONCONDUCTIVE MATERIAL SPECIFICALLY DESIGNED TO PROVIDE A SUPPORT FOR MOUNTING AN ELECTRICAL AND/OR AN ELECTRONIC COMPONENT SUCH AS A SEMICONDUCTOR DEVICE, RELAY, OR RESISTOR INTO THE NEXT HIGHER ASSEMBLY. IT ISOLATES THE COMPONENT FROM THE MOUNTING SURFACE OF THE NEXT HIGHER ASSEMBLY, IT MAY ACT AS A STRAIN RELIEF TO AVOID DAMAGE TO THE COMPONENT SEAL, AND IT MAY PERMIT SOLDERING OF THE COMPONENT TO THE NEXT HIGHER ASSEMBLY WITHOUT DAMAGE. IT INCLUDES HOLES, NOTCHES, OR OTHER PROVISIONS FOR PHYSICAL ALIGNMENT AND SPACING OF ELECTRICAL LEADS AND/OR OTHER MOUNTING FACILITIES PROJECTING FROM THE COMPONENT IT MOUNTS. IT MAY ALSO AFFORD PROTECTION FROM SHOCK OR VIBRATION. IT MAY BE EITHER NONTHERMALLY CONDUCTIVE WHICH PROTECTS THE COMPONENT FROM TEMPERATURE CHANGES IN THE NEXT HIGHER ASSEMBLY OR IT MAY BE THERMALLY CONDUCTIVE WHICH PERMITS HEAT GENERATED IN THE COMPONENT TO BE DRAINED OUT TO A HEAT SINK. FOR ITEMS WHOSE FUNCTION IS ELECTRICAL INSULATION ONLY, SEE INSULATOR, (AS MODIFIED). EXCLUDES HOLDER, (AS MODIFIED); RETAINER, (AS MODIFIED), AND SPACER, PLATE.


Manufacturer Information:
497A10105-438597LOCKHEED MARTIN CORPORATION


Techincal Specification:
ACCOMMODATED DEVICE MOUNTING HOLE QUANTITY4
BODY STYLERECTANGULAR
COLORNATURAL
OVERALL HEIGHT0.110 INCHES MINIMUM AND 0.130 INCHES MAXIMUM
OVERALL LENGTH7.970 INCHES MINIMUM AND 8.030 INCHES MAXIMUM
OVERALL WIDTH5.970 INCHES MINIMUM AND 6.030 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-46184, TYPE I MIL SPEC ALL MATERIAL RESPONSES
MATERIALPLASTIC
MOUNTING FACILITY TYPE AND QUANTITY4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
UNTHREADED MOUNTING HOLE DIAMETER0.749 INCHES MINIMUM AND 0.758 INCHES MAXIMUM SINGLE MOUNTING FACILITY


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