5306-01-169-6763, BOLT,INTERNALLY RELIEVED BODY

National Stock Number:
5306-01-169-6763

Federal Supply Class:
5306

National Item Identification Number:
011696763

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:

2689475

10001

NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER

Techincal Specification:

CONCENTRIC HOLE DEPTH	0.437 INCHES MINIMUM AND 0.467 INCHES MAXIMUM
CONCENTRIC HOLE DIAMETER	0.113 INCHES NOMINAL
FASTENER LENGTH	1.313 INCHES NOMINAL
HARDNESS RATING	35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.187 INCHES NOMINAL
HEAD STYLE	HEXAGON
INTERNAL THREAD CLASS	2B COUNTERBORE
INTERNAL THREAD DIRECTION	RIGHT-HAND COUNTERBORE
INTERNAL THREAD LENGTH	0.250 INCHES NOMINAL COUNTERBORE
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A322 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A331 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 4140 OVERALL
NOMINAL THREAD DIAMETER	0.164 INCHES
NOMINAL THREAD SIZE	0.138 INCHES COUNTERBORE
SHOULDER DIAMETER	0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
SHOULDER LENGTH	0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
STYLE DESIGNATOR	COUNTERBORE THREADED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	DOD-P-16232 TY M CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PHOSPHATE MANGANESE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.375 INCHES NOMINAL
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)
THREAD SERIES	UNIFIED NATIONAL COARSE (UNC) COUNTERBORE
THREADS PER INCH	32 COUNTERBORE

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