8470-01-551-8220 INSERT,BALLISTIC Index 8415-01-551-8222 INSERT,BALLISTIC

National Stock Number:
5305-01-551-8221

Federal Supply Class:
5305

National Item Identification Number:
015518221

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:
4079403901917ARAFAEL ADVANCED DEFENSE SYSTEMS LTD
407940390SD477RAFAEL
8H-A33269064S4BAE SYSTEMS LAND & ARMAMENTS L.P.
TYUW33032B064S4BAE SYSTEMS LAND & ARMAMENTS L.P.
TYUW33032B1917ARAFAEL ADVANCED DEFENSE SYSTEMS LTD
TYUW33032BSD477RAFAEL


Techincal Specification:
FASTENER LENGTH1.250 INCHES NOMINAL
HEAD HEIGHT0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONANSI B18.2.1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 316 OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYSCREW 0.25 HEX HEAD
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD DIAMETER0.250 INCHES
WIDTH BETWEEN FLATS0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.245 INCHES NOMINAL
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNF


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