5310-00-651-1253 LOCKNUT Index 1560-00-651-1256 DUCT ASSY

National Stock Number:
5310-00-651-1254

Federal Supply Class:
5310

National Item Identification Number:
006511254

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:
7M20-4476301THE BOEING COMPANY
7M20A4476301THE BOEING COMPANY


Techincal Specification:
THREAD SERIESUN
NOMINAL THREAD SIZE2.750 INCHES
THREAD QUANTITY PER INCH12
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
MATERIALALUMINUM ALLOY 2024 OR
ALUMINUM ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-200/3,T62 FED SPEC SINGLE MATERIAL RESPONSE OR
QQ-A-200/3,T81 FED SPEC SINGLE MATERIAL RESPONSE OR
WW-T-700/3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTANODIZE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 2,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NUT STYLEROUND
DRIVE POINT DEPTH0.120 INCHES NOMINAL
NUT DIAMETER3.242 INCHES MINIMUM AND
3.258 INCHES MAXIMUM
NUT THICKNESS0.312 INCHES MINIMUM AND
0.332 INCHES MAXIMUM
DRIVE POINT WIDTH0.190 INCHES MINIMUM AND
0.205 INCHES MAXIMUM
DRIVE POINT QUANTITY4
HOLE CONFIGURATION STYLECONFIGURATION J
HOLE TYPE AND QUANTITY4 DRILLED
DRILLED HOLE DIAMETER0.063 INCHES MINIMUM AND
0.068 INCHES MAXIMUM
THE MANUFACTURERS DATA
MANUFACTURERS CODE76301
DESIGN CONTROL REFERENCE7M20A44


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