5306-01-214-2217, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-214-2217

Federal Supply Class:
5306

National Item Identification Number:
012142217

Description:
BOLT,EXTERNALLY RELIEVED BODY

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercuts for thread relief). It is No. 10 (0.190 IN.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, INTERNAL WRENCHING and THUMBSCREW. See also SCREW, EXTERNALLY RELIEVED BODY.

Manufacturer Information:

75A170113-2001

76301

THE BOEING COMPANY

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	1.155 INCHES MINIMUM AND 1.175 INCHES MAXIMUM FIRST HOLE
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.965 INCHES MINIMUM AND 0.975 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	1.066 INCHES MINIMUM AND 1.091 INCHES MAXIMUM
DISTANCE FROM CENTERLINE TO FLAT	0.264 INCHES MINIMUM AND 0.274 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	2
FASTENER LENGTH	1.275 INCHES MINIMUM AND 1.285 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
HEAD DIAMETER	0.175 INCHES NOMINAL
HEAD HEIGHT	0.120 INCHES NOMINAL
HEAD STYLE	DEE
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6411 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL UNS K23080 OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES
SECOND DIAMETER FROM HEAD	0.181 INCHES MINIMUM AND 0.191 INCHES MAXIMUM
SHANK UNTHREADED HOLE DIAMETER	0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE
SPECIAL FEATURES	DEE UNDERCUT HEAD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	PS13102 CL B,FSCM 76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CHROMIUM OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.184 INCHES MINIMUM AND 0.219 INCHES MAXIMUM
THREAD QUANTITY PER INCH	28
THREAD SERIES DESIGNATOR	UNJF

Click here to Register for Free 30-day Trial