5306-00-020-3615, BOLT,EXTERNALLY RELIEVED BODY

5305-00-020-3623 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-020-3615

Federal Supply Class:
5306

National Item Identification Number:
000203615

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:

68965-S

80254

TEXTRON LYCOMING INC WILLIAMSPORT PLANT

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	0.910 INCHES NOMINAL FIRST HOLE
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.470 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	0.570 INCHES NOMINAL
DISTANCE FROM CENTERLINE TO FLAT	0.240 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	3
FASTENER LENGTH	1.030 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.410 INCHES MINIMUM AND 0.411 INCHES MAXIMUM
HARDNESS RATING	28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER	0.750 INCHES NOMINAL
HEAD HEIGHT	0.150 INCHES MINIMUM AND 0.165 INCHES MAXIMUM
HEAD STYLE	DEE
MATERIAL	STEEL COMP 8740 OVERALL
NOMINAL THREAD DIAMETER	0.375 INCHES
SECOND DIAMETER FROM HEAD	0.400 INCHES MINIMUM AND 0.401 INCHES MAXIMUM
SHANK UNTHREADED HOLE DIAMETER	0.074 INCHES MINIMUM AND 0.081 INCHES MAXIMUM FIRST HOLE
THIRD DIAMETER FROM HEAD	0.306 INCHES MINIMUM AND 0.316 INCHES MAXIMUM
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.460 INCHES NOMINAL
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	24

Click here to Register for Free 30-day Trial