5306-00-006-0508, BOLT,INTERNALLY RELIEVED BODY

5306-00-006-0509 BOLT,INTERNALLY RELIEVED BODY

National Stock Number:
5306-00-006-0508

Federal Supply Class:
5306

National Item Identification Number:
000060508

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:

A51M42543-13	26512	NORTHROP GRUMMAN SYSTEMS CORPORATION
A51M42543-13	61174	NORTHROP GRUMMAN SYSTEMS CORPORATION
A51M42543-13	79RG9	NORTHROP GRUMMAN SYSTEMS CORPORATION

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	2.062 INCHES NOMINAL FIRST HOLE
CONCENTRIC HOLE DEPTH	0.320 INCHES NOMINAL
CONCENTRIC HOLE DIAMETER	0.195 INCHES MINIMUM AND 0.201 INCHES MAXIMUM
FASTENER LENGTH	2.187 INCHES NOMINAL
HEAD HEIGHT	0.063 INCHES NOMINAL
HEAD DIAMETER	0.750 INCHES NOMINAL
HEAD STYLE	ROUND W/WRENCH FLATS
MATERIAL	STEEL OVERALL
NOMINAL THREAD DIAMETER	0.312 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.072 INCHES MINIMUM AND 0.077 INCHES MAXIMUM FIRST HOLE
SHOULDER DIAMETER	0.4976 INCHES MINIMUM AND 0.4981 INCHES MAXIMUM
SHOULDER LENGTH	1.842 INCHES NOMINAL
WIDTH BETWEEN FLATS	0.552 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
STYLE DESIGNATOR	CONCENTRIC HOLE UNTHREADED
SURFACE TREATMENT	CADMIUM OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.345 INCHES MINIMUM
THREAD QUANTITY PER INCH	24
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)

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