5306-00-638-3544, BOLT,INTERNALLY RELIEVED BODY

National Stock Number:
5306-00-638-3544

Federal Supply Class:
5306

National Item Identification Number:
006383544

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:

6-73107

81205

THE BOEING COMPANY

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	9.520 INCHES NOMINAL FIRST HOLE
CONCENTRIC HOLE DIAMETER	1.250 INCHES NOMINAL
CRITICALITY CODE JUSTIFICATION	FEAT AND AGAV
FASTENER LENGTH	10.180 INCHES NOMINAL
HARDNESS RATING	40.0 ROCKWELL B MAXIMUM AND 43.0 ROCKWELL B MAXIMUM OVERALL
HEAD DIAMETER	2.520 INCHES NOMINAL
HEAD HEIGHT	0.380 INCHES NOMINAL
HEAD STYLE	ROUND W/WRENCH FLATS
MATERIAL	STEEL COMP 4130 OVERALL
PROPRIETARY CHARACTERISTICS	PACS
MINIMUM TENSILE STRENGTH	180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	1.937 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.172 INCHES NOMINAL FIRST HOLE
SHOULDER DIAMETER	1.998 INCHES NOMINAL
SHOULDER LENGTH	8.980 INCHES NOMINAL
SPECIAL FEATURES	CRITICAL DIMENSIONS/APPLICATION
WIDTH BETWEEN FLATS	2.200 INCHES NOMINAL
STYLE DESIGNATOR	CONCENTRIC HOLE UNTHREADED
SURFACE TREATMENT	CADMIUM OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.940 INCHES MINIMUM
THREAD QUANTITY PER INCH	16
THREAD SERIES DESIGNATOR	UN

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