5306-00-445-8521, BOLT,INTERNALLY RELIEVED BODY

National Stock Number:
5306-00-445-8521

Federal Supply Class:
5306

National Item Identification Number:
004458521

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:

5306AC1-010	81996	U S ARMY AVIATION AND MISSILE COMMAND
5511-5	02121	GOODRICH AEROSPACE CANADA LTD.

Techincal Specification:

CONCENTRIC HOLE DIAMETER	0.750 INCHES NOMINAL
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	5.872 INCHES NOMINAL FIRST HOLE
FASTENER LENGTH	6.281 INCHES NOMINAL
HEAD HEIGHT	0.188 INCHES NOMINAL
HEAD STYLE	SQUARE
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP E4340 OVERALL
MINIMUM TENSILE STRENGTH	150000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	1.062 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.128 INCHES NOMINAL FIRST HOLE
SPECIAL FEATURES	ZINC CHROMATE FINISH INTERNALLY RELIEVED PORTION,TWO HOLES IN HEAD
STYLE DESIGNATOR	CONCENTRIC HOLE UNTHREADED
WIDTH BETWEEN FLATS	1.615 INCHES MINIMUM AND 1.625 INCHES MAXIMUM
SURFACE TREATMENT	CADMIUM THREADS
SURFACE TREATMENT	CHROMIUM GRIP
THREAD DIRECTION	RIGHT-HAND
THREAD CLASS	3A
THREAD LENGTH	0.626 INCHES MINIMUM
THREAD SERIES DESIGNATOR	UN
THREAD QUANTITY PER INCH	16

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