5305-00-486-3717, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-486-3717

Federal Supply Class:
5305

National Item Identification Number:
004863717

Description:
SCREW,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 undercut for thread relief). It is No. 0 (0.060 IN.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below No. 10 (0.190 IN.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also BOLT, EXTERNALLY RELIEVED BODY and BOLT, INTERNAL WRENCHING.

Manufacturer Information:

549-0944-005	13499	ROCKWELL COLLINS, INC.
549-0944-005	95105	ROCKWELL COLLINS, INC.

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	2.568 INCHES MINIMUM AND 2.648 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	5.024 INCHES MINIMUM AND 5.054 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	5.118 INCHES MINIMUM AND 5.148 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	3
FASTENER LENGTH	5.403 INCHES MINIMUM AND 5.463 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.139 INCHES MINIMUM AND 0.145 INCHES MAXIMUM
HEAD DIAMETER	0.235 INCHES MINIMUM AND 0.255 INCHES MAXIMUM
HEAD HEIGHT	0.132 INCHES MINIMUM AND 0.156 INCHES MAXIMUM
HEAD STYLE	FLAT CHAMFER
INTERNAL DRIVE STYLE	CROSS RECESS TYPE 1
MATERIAL	STEEL COMP 303 OR STEEL COMP 430 OVERALL
NOMINAL THREAD DIAMETER	0.164 INCHES
SECOND DIAMETER FROM HEAD	0.159 INCHES MINIMUM AND 0.165 INCHES MAXIMUM
SPECIAL FEATURES	COLOR RED AND FURNISHED WITH ONE FLAT WASHER
SURFACE TREATMENT	PAINT TOP OF HEAD
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	2A
THIRD DIAMETER FROM HEAD	0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.157 INCHES MINIMUM AND 0.293 INCHES MAXIMUM
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNC

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