5306-01-012-5264, BOLT,INTERNALLY RELIEVED BODY

National Stock Number:
5306-01-012-5264

Federal Supply Class:
5306

National Item Identification Number:
010125264

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:

618-7271-001	13499	ROCKWELL COLLINS, INC.
618-7271-001	95105	ROCKWELL COLLINS, INC.

Techincal Specification:

CONCENTRIC HOLE DIAMETER	0.164 INCHES NOMINAL
FASTENER LENGTH	0.880 INCHES NOMINAL
HEAD DIAMETER	0.357 INCHES MINIMUM AND 0.363 INCHES MAXIMUM
HEAD HEIGHT	0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM
HEAD STYLE	FLAT CHAMFER
INTERNAL THREAD CLASS	2B COUNTERBORE
INTERNAL THREAD DIRECTION	RIGHT-HAND COUNTERBORE
INTERNAL THREAD LENGTH	0.250 INCHES NOMINAL COUNTERBORE
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 303 OVERALL
PROPRIETARY CHARACTERISTICS	PACS
NOMINAL THREAD DIAMETER	0.250 INCHES
NOMINAL THREAD SIZE	0.164 INCHES COUNTERBORE
SPECIAL FEATURES	COUNTERSUNK 79.0-85.0 DEGREES; 330-338 IN. DIA
STYLE DESIGNATOR	CONCENTRIC HOLE UNTHREADED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	580-0025-000 CAGEC 13499 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.250 INCHES NOMINAL
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNF
THREAD SERIES	UNC COUNTERBORE
THREADS PER INCH	32 COUNTERBORE

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