5306-00-075-3788, BOLT,INTERNALLY RELIEVED BODY

National Stock Number:
5306-00-075-3788

Federal Supply Class:
5306

National Item Identification Number:
000753788

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:

123LM10019-5	26512	NORTHROP GRUMMAN SYSTEMS CORPORATION
123LM10019-5	79RG9	NORTHROP GRUMMAN SYSTEMS CORPORATION

Techincal Specification:

CONCENTRIC HOLE DIAMETER	0.747 INCHES MINIMUM AND 0.758 INCHES MAXIMUM
CONCENTRIC HOLE DEPTH	4.149 INCHES MINIMUM AND 4.180 INCHES MAXIMUM
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	5.092 INCHES NOMINAL FIRST HOLE
FASTENER LENGTH	5.344 INCHES NOMINAL
HARDNESS RATING	39.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.187 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP E4340 OVERALL
MINIMUM TENSILE STRENGTH	180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.500 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.104 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE
SHOULDER DIAMETER	0.9945 INCHES MINIMUM AND 0.9955 INCHES MAXIMUM
SHOULDER LENGTH	4.492 INCHES MINIMUM AND 4.502 INCHES MAXIMUM
STYLE DESIGNATOR	CONCENTRIC HOLE UNTHREADED
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.513 INCHES NOMINAL
THREAD QUANTITY PER INCH	20
THREAD SERIES DESIGNATOR	UNF

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