2520-01-522-9589 FLEX PLATE Index 8410-01-522-9591 KIT,HAT,COMBINATION

National Stock Number:
5306-01-522-9590

Federal Supply Class:
5306

National Item Identification Number:
015229590

Description:
BOLT,INTERNALLY RELIEVED BODY

Detail:
An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see BOLT, FLUID PASSAGE.


Manufacturer Information:
P126113407PZX0FAIRBANKS MORSE, LLC
P1261134082796COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE


Techincal Specification:
CONCENTRIC HOLE DIAMETER0.781 INCHES NOMINAL
EXTERNAL THREAD TOLERANCE CLASS4G6G
FASTENER LENGTH4.370 INCHES NOMINAL
FEATURES PROVIDEDFINISHED HEAD
HEAD HEIGHT1.180 INCHES NOMINAL
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONNF XC48 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER76.0 MILLIMETERS
PART NAME ASSIGNED BY CONTROLLING AGENCYSCREW, PRESSURE, HIGH SHOCK
SPECIAL FEATURESHEAD HAS TWO RAISED CIRCULAR EXTENSIONS; 1ST IS 4MM HIGH X 72MM IN DIA.; SCND IS 3 MM HIGH X 45 MM IN DIA.
WIDTH BETWEEN FLATS0.322 INCHES MINIMUM AND 0.323 INCHES MAXIMUM
STYLE DESIGNATORCONCENTRIC HOLE UNTHREADED
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH2.700 INCHES NOMINAL
THREAD SERIES DESIGNATORM
THREAD PITCH IN MILLIMETERS3.0


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