5305-01-020-7140 SCREW,TAPPING Index 4710-01-020-7142 TUBE,METALLIC

National Stock Number:
5306-01-020-7141

Federal Supply Class:
5306

National Item Identification Number:
010207141

Description:
BOLT,RIBBED NECK

Detail:
A HEADED EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER WITH A SERIES OF LONGITUDINAL RIBS, SPLINES OR SERRATIONS ON ALL OR PART OF THE UNTHREADED PORTION. SEE ALSO BOLT, RIBBED SHOULDER.


Manufacturer Information:
15-80687721UNIT MFG CO
328AS130-130003NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.500 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.125 INCHES NOMINAL
FASTENER LENGTH1.875 INCHES NOMINAL
MATERIALSTEEL COMP 4130 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6370 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY2 CL1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING25.0 ROCKWELL C MINIMUM AND
32.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.875 INCHES NOMINAL
HEAD HEIGHT0.250 INCHES NOMINAL
RIB MAJOR DIAMETER0.562 INCHES MAXIMUM
RIB LENGTH0.531 INCHES NOMINAL


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