6625-01-251-4989 METER,SPECIAL SCALE Index 5306-01-251-4991 BOLT,MACHINE

National Stock Number:
5306-01-251-4990

Federal Supply Class:
5306

National Item Identification Number:
012514990

Description:
BOLT,INTERNAL WRENCHING

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No. 10 (0.190 IN.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also SCREW, CAP, SOCKET HEAD. Excludes SETSCREW; SCREW, SHOULDER; BOLT, SHOULDER; SCREW, EXTERNALLY RELIEVED BODY; BOLT, EXTERNALLY RELIEVED BODY; and SCREW, MACHINE.


Manufacturer Information:
123PM10404-126512NORTHROP GRUMMAN SYSTEMS CORPORATION
123PM10404-179RG9NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.875 INCHES
THREAD QUANTITY PER INCH14
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.187 INCHES MINIMUM AND
1.312 INCHES MAXIMUM
FASTENER LENGTH2.052 INCHES MINIMUM AND
2.072 INCHES MAXIMUM
MATERIALSTEEL COMP E4340 OR
STEEL COMP 4140 OR
STEEL COMP 8735 OR
STEEL COMP 8740 OR
STEEL COMP 6150 OVERALL
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND
40.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
HEAD DIAMETER1.428 INCHES MINIMUM AND
1.438 INCHES MAXIMUM
HEAD HEIGHT0.865 INCHES MINIMUM AND
0.885 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.626 INCHES MINIMUM AND
0.630 INCHES MAXIMUM


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