5306-00-975-3028, BOLT,INTERNALLY RELIEVED BODY

National Stock Number:
5306-00-975-3028

Federal Supply Class:
5306

National Item Identification Number:
009753028

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:

128WM10131-1	26512	NORTHROP GRUMMAN SYSTEMS CORPORATION
128WM10131-1	79RG9	NORTHROP GRUMMAN SYSTEMS CORPORATION

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	3.506 INCHES NOMINAL FIRST HOLE
CONCENTRIC HOLE DIAMETER	0.498 INCHES MINIMUM AND 0.505 INCHES MAXIMUM
FASTENER LENGTH	3.645 INCHES NOMINAL
HARDNESS RATING	36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.500 INCHES NOMINAL
HEAD STYLE	HEXAGON
MATERIAL	STEEL OVERALL
MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	1.000 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCY	NAVY SPECIAL PROJECT
SHANK UNTHREADED HOLE DIAMETER	0.141 INCHES NOMINAL FIRST HOLE
WIDTH BETWEEN FLATS	1.427 INCHES MINIMUM AND 1.440 INCHES MAXIMUM
STYLE DESIGNATOR	CONCENTRIC HOLE UNTHREADED
SURFACE TREATMENT	CADMIUM OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.770 INCHES MINIMUM
THREAD QUANTITY PER INCH	12
THREAD SERIES DESIGNATOR	UNF

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