5306-00-638-7145, BOLT,INTERNALLY RELIEVED BODY

National Stock Number:
5306-00-638-7145

Federal Supply Class:
5306

National Item Identification Number:
006387145

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:

8164411

18876

U S ARMY AVIATION AND MISSILE COMMAND

Techincal Specification:

EXTENDED WASHER DIAMETER	0.750 INCHES NOMINAL
EXTENDED WASHER THICKNESS	0.093 INCHES NOMINAL
FASTENER LENGTH	0.844 INCHES NOMINAL
HARDNESS RATING	23.0 ROCKWELL C NOMINAL OVERALL
HEAD HEIGHT	0.250 INCHES NOMINAL
INTERNAL THREAD LENGTH	0.312 INCHES NOMINAL CONCENTRIC HOLE
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 4140 OVERALL
MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.375 INCHES
NOMINAL THREAD SIZE	0.164 INCHES CONCENTRIC HOLE
WIDTH BETWEEN FLATS	0.555 INCHES MINIMUM AND 0.565 INCHES MAXIMUM
STYLE DESIGNATOR	CONCENTRIC HOLE THREADED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.500 INCHES MAXIMUM
THREAD QUANTITY PER INCH	24
THREAD SERIES DESIGNATOR	UNF
THREAD SERIES	UNIFIED NATIONAL COARSE (UNC) CONCENTRIC HOLE
THREADS PER INCH	32 CONCENTRIC HOLE

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