5306-00-007-2827, BOLT,INTERNALLY RELIEVED BODY

National Stock Number:
5306-00-007-2827

Federal Supply Class:
5306

National Item Identification Number:
000072827

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:

A51B28521-11	26512	NORTHROP GRUMMAN SYSTEMS CORPORATION
A51B28521-11	61174	NORTHROP GRUMMAN SYSTEMS CORPORATION
A51B28521-11	79RG9	NORTHROP GRUMMAN SYSTEMS CORPORATION

Techincal Specification:

CONCENTRIC HOLE DIAMETER	0.200 INCHES MINIMUM AND 0.206 INCHES MAXIMUM
CONCENTRIC HOLE DEPTH	1.600 INCHES NOMINAL
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	2.005 INCHES NOMINAL FIRST HOLE
FASTENER LENGTH	2.125 INCHES NOMINAL
HEAD DIAMETER	0.750 INCHES NOMINAL
HEAD HEIGHT	0.125 INCHES NOMINAL
HEAD STYLE	ROUND W/WRENCH FLATS
MATERIAL DOCUMENT AND CLASSIFICATION	G-3111,COMP 6AL-6V-2SN FSCM 26512 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	TITANIUM ALLOY OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM FIRST HOLE
SHOULDER DIAMETER	0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM
SHOULDER LENGTH	1.770 INCHES NOMINAL
SPECIAL FEATURES	CHAMFER UNDER SIDE OF HEAD 45 DEG BY 0.050 IN.
STYLE DESIGNATOR	CONCENTRIC HOLE UNTHREADED
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.355 INCHES MINIMUM
THREAD QUANTITY PER INCH	28
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)
WIDTH BETWEEN FLATS	0.500 INCHES MINIMUM AND 0.510 INCHES MAXIMUM

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