1560-01-550-9556 RIB,STIFFENER,AIRCRAFT Index 2541-01-550-9558 BAR ARMOR ASSEMBLY

National Stock Number:
5307-01-550-9557

Federal Supply Class:
5307

National Item Identification Number:
015509557

Description:
STUD,SHOULDERED

Detail:
A HEADLESS FASTENER NOT EXCEEDING 12 INCHES (304.8 MM) IN LENGTH, THREADED EXTERNALLY ON BOTH ENDS WITH THREADS OF THE SAME NOMINAL DIAMETER. ALL OR PART OF THE UNTHREADED SECTION HAS A CROSS-SECTIONAL DIAMETER GREATER THAN THE NOMINAL STUD SIZE PLUS 0.020 INCHES (0.508 MM). IT MAY BE THREAD RELIEVED. SEE ALSO STUD, LOCKED IN.


Manufacturer Information:
581967053711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
OVERALL LENGTH7.190 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONAWS 5629 ASSN STD SINGLE MATERIAL RESPONSE
MATERIALSTEEL CORROSION RESISTING
NOMINAL THREAD SIZE0.312 INCHES NUT THREAD A
NOMINAL THREAD SIZE0.312 INCHES NUT THREAD B
PART NAME ASSIGNED BY CONTROLLING AGENCYSTUD
SHOULDER DIAMETER0.375 INCHES NOMINAL
SHOULDER LENGTH3.570 INCHES NOMINAL
SPECIAL FEATURESBOTH ENDS ARE IDENTICAL, MEASURING 1.810 INCH TO SHOULDER BODY W/DIA OF 0.305/0.312 INCH
STYLE DESIGNATORSHOULDERED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35,TYPE II FED SPEC SINGLE TREATMENT RESPONSE BODY
SURFACE TREATMENTPASSIVATE BODY
THREAD DIRECTIONRIGHT-HAND NUT THREAD A
THREAD DIRECTIONRIGHT-HAND NUT THREAD B
THREAD CLASS2A NUT THREAD A
THREAD CLASS2A NUT THREAD B
THREAD LENGTH0.870 INCHES NOMINAL NUT THREAD A
THREAD LENGTH0.870 INCHES NOMINAL NUT THREAD B
THREAD SERIES DESIGNATORUNF NUT THREAD A
THREAD SERIES DESIGNATORUNF NUT THREAD B
THREAD QUANTITY PER INCH24 NUT THREAD A
THREAD QUANTITY PER INCH24 NUT THREAD B


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