1280-00-791-4230 TERMIANL BOARD Index 1560-00-791-4243 BELL,CRANK,PIN,LOCK

National Stock Number:
5310-00-791-4235

Federal Supply Class:
5310

National Item Identification Number:
007914235

Description:
NUT,PLAIN,ROUND

Detail:
A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use POST, ELECTRICAL-MECHANICAL EQUIPMENT. See also NUT (1), PLAIN, KNURLED. (When height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)


Manufacturer Information:
7M20-3076301THE BOEING COMPANY
C639-3081755LOCKHEED MARTIN CORPORATION


Techincal Specification:
DRIVE POINT DEPTH0.120 INCHES NOMINAL
DRIVE POINT QUANTITY4
DRIVE POINT WIDTH0.190 INCHES MINIMUM AND 0.205 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 2024 OVERALL
NOMINAL THREAD SIZE1.875 INCHES
NUT DIAMETER2.367 INCHES MINIMUM AND 2.383 INCHES MAXIMUM
NUT STYLEROUND
NUT THICKNESS0.312 INCHES MINIMUM AND 0.332 INCHES MAXIMUM
SPECIAL FEATURESFOUR HOLES EQUALLY SPACED 0.063 IN. DIAMETER AT 45 DEGREE ANGLE FROM TOP CENTER THRU OUTER SURFACE
SPECIFICATION/STANDARD DATA81755-C639 MANUFACTURERS SOURCE CONTROL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTANODIZE OVERALL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUN
THREAD QUANTITY PER INCH12


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