5305-01-283-2419 SCREW,MACHINE Index 5305-01-283-2421 SCREW,CAP,SOCKET HEAD

National Stock Number:
5306-01-283-2420

Federal Supply Class:
5306

National Item Identification Number:
012832420

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:
717801664-00104939LOCKHEED MARTIN CORPORATION
CA21160-4-4HS29372HOWMET GLOBAL FASTENING SYSTEMS INC.


Techincal Specification:
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
FASTENER LENGTH1.102 INCHES MINIMUM AND 1.122 INCHES MAXIMUM
HEAD DIAMETER0.375 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
HEAD STYLEOVAL COUNTERSUNK
INTERNAL DRIVE STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5732 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
MATERIALIRON ALLOY 660 FASTENER
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.250 INCHES
SPECIAL FEATURES2 SLOTS ON THREAD END 0.125-0.140 IN. DIA.; 0.620 IN. LG. FOR LOCKWIRE; 2 LONG SLOTS ON THREADS AND SHANK 0.045-0.055 IN. DIA.; LOCKWIRE 17-7PH CRES PER AMS 5673 HEAT TREATED TO CONDITION CH900 PER MIL-H-6875,PASSIVATED PER QQ-P-35; THREADS 2 LEAD
WIDTH ACROSS FLATS0.1409 INCHES MINIMUM AND 0.1426 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENTPASSIVATE FASTENER
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.672 INCHES MINIMUM AND 0.831 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH28


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