4310-01-478-2431 HEAD,VALVE Index 4820-01-478-2433 HEAD,VALVE

National Stock Number:
5306-01-478-2432

Federal Supply Class:
5306

National Item Identification Number:
014782432

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:
03A5111W025NORTHROP GRUMMAN SYSTEMS CORP
03A511-4-15C1W025NORTHROP GRUMMAN SYSTEMS CORP
CB9294-4-15C06725SPS TECHNOLOGIES, LLC


Techincal Specification:
THREAD SERIES DESIGNATORUNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.403 INCHES NOMINAL
FASTENER LENGTH1.2145 INCHES MINIMUM AND
1.2165 INCHES MAXIMUM
MATERIALTITANIUM ALLOY UNS R56400 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS4928 ASSN STD 1ST MATERIAL RESPONSE OR
AMS4967 ASSN STD 2ND MATERIAL RESPONSE OVERALL
MINIMUM TENSILE STRENGTH3700 POUNDS PER SQUARE INCH
HEAD STYLEFLAT COUNTERSUNK
HEAD DIAMETER0.438 INCHES MINIMUM AND
0.511 INCHES MAXIMUM
COUNTERSINK ANGLE129.0 DEGREES MINIMUM AND
131.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLETORX
SPLINE MAJOR DIAMETER0.173 INCHES MINIMUM AND
0.183 INCHES MAXIMUM
SPECIAL FEATURESGRIP LENGTH MIN .9275 MAX .9475 GRIP DIAMETER MIN .2485 MAX .2495


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