1270-00-011-8961 MOUNT Index 5960-00-011-8969 ELECTRON TUBE

National Stock Number:
5305-00-011-8968

Federal Supply Class:
5305

National Item Identification Number:
000118968

Description:
SCREW,CAP,HEXAGON HEAD

Detail:
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.


Manufacturer Information:
FFS85TYPE2STYLE10PGRADE281348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
FASTENER LENGTH2.750 INCHES NOMINAL
HARDNESS RATING100.0 ROCKWELL B MAXIMUM OVERALL
HEAD HEIGHT0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIALSTEEL OVERALL
MINIMUM TENSILE STRENGTH69000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.375 INCHES
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 10P STYLE AND 2 GRADE
WIDTH BETWEEN FLATS0.551 INCHES MINIMUM AND 0.563 INCHES MAXIMUM
SURFACE TREATMENTPHOSPHATE OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.000 INCHES MINIMUM
THREAD QUANTITY PER INCH24
THREAD SERIES DESIGNATORUNF


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