5306-01-288-3766, BOLT,INTERNALLY RELIEVED BODY

National Stock Number:
5306-01-288-3766

Federal Supply Class:
5306

National Item Identification Number:
012883766

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:

3280941

10001

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

Techincal Specification:

COLOR	BLACK OVERALL
CONCENTRIC HOLE DIAMETER	0.438 INCHES MINIMUM AND 0.453 INCHES MAXIMUM
FASTENER LENGTH	1.980 INCHES MINIMUM AND 2.000 INCHES MAXIMUM
HEAD DIAMETER	1.250 INCHES NOMINAL
HEAD HEIGHT	0.250 INCHES NOMINAL
HEAD STYLE	ROUND W/WRENCH FLATS
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM B16 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	COPPER ALLOY 360 OVERALL
NOMINAL THREAD DIAMETER	0.625 INCHES
SPECIAL FEATURES	WASHER EXTENTION ON HEAD 1.250 IN. DIA.,0.062 WIDTH; WATER TYPE SEAL UNDERCUT; SURFACE TEXTURE FINISH 32.0 MICROIN. FROM THREADED END OF GRIP. 0.188 IN. MIN.,0.312 IN. MAX. LGTH
STYLE DESIGNATOR	CONCENTRIC HOLE UNTHREADED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-F-495 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	OXIDE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.314 INCHES NOMINAL
THREAD SERIES DESIGNATOR	UNEF
THREAD QUANTITY PER INCH	24
WIDTH BETWEEN FLATS	0.980 INCHES MINIMUM AND 1.000 INCHES MAXIMUM

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