5306-00-224-0069, BOLT,INTERNALLY RELIEVED BODY

National Stock Number:
5306-00-224-0069

Federal Supply Class:
5306

National Item Identification Number:
002240069

Description:
BOLT,INTERNALLY RELIEVED BODY

Detail:
An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see BOLT, FLUID PASSAGE.

Manufacturer Information:

26-760520-2

80378

TRIUMPH AEROSTRUCTURES, LLC

Techincal Specification:

THREAD SERIES DESIGNATOR	UNF
NOMINAL THREAD DIAMETER	0.375 INCHES
THREAD QUANTITY PER INCH	24
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.470 INCHES MAXIMUM
FASTENER LENGTH	1.500 INCHES NOMINAL
MATERIAL	STEEL COMP 4130 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM HEAD
	CHROMIUM GRIP
	CADMIUM THREADS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	CVA5-2 FSCM 80378 MFR REF SINGLE TREATMENT RESPONSE HEAD
	CVA5-5,TYPE 11B FSCM 80378 MFR REF SINGLE TREATMENT RESPONSE GRIP
	CVA5-2 FSCM 80378 MFR REF SINGLE TREATMENT RESPONSE THREADS
HARDNESS RATING	39.0 ROCKWELL C MINIMUM AND
	43.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	180000 POUNDS PER SQUARE INCH
STYLE DESIGNATOR	COUNTERBORE THREADED
SHOULDER DIAMETER	0.4371 INCHES MINIMUM AND
	0.4373 INCHES MAXIMUM
SHOULDER LENGTH	1.030 INCHES NOMINAL
CONCENTRIC HOLE DEPTH	0.460 INCHES MINIMUM AND
	0.520 INCHES MAXIMUM
CONCENTRIC HOLE DIAMETER	0.1300 INCHES MINIMUM AND
	0.1389 INCHES MAXIMUM
THREAD SERIES	UNC COUNTERBORE
NOMINAL THREAD SIZE	0.164 INCHES COUNTERBORE
THREADS PER INCH	32 COUNTERBORE
INTERNAL THREAD CLASS	3B COUNTERBORE
INTERNAL THREAD DIRECTION	RIGHT-HAND COUNTERBORE
INTERNAL THREAD LENGTH	0.260 INCHES NOMINAL COUNTERBORE
HEAD STYLE	HEXAGON
HEAD HEIGHT	0.200 INCHES NOMINAL
WIDTH BETWEEN FLATS	0.619 INCHES MINIMUM AND
	0.625 INCHES MAXIMUM
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	1.320 INCHES NOMINAL FIRST HOLE
SHANK UNTHREADED HOLE DIAMETER	0.096 INCHES NOMINAL FIRST HOLE
TEST DATA DOCUMENT	81349-MIL-I-6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
CRITICALITY CODE JUSTIFICATION	AAVH
THE MANUFACTURERS DATA
MANUFACTURERS CODE	80378
DESIGN CONTROL REFERENCE	26-760520-2

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