5305-01-226-1942, SCREW,EXTERNALLY RELIEVED BODY

5306-01-226-1941 BOLT,MACHINE

5305-01-226-1943 SCREW,MACHINE

National Stock Number:
5305-01-226-1942

Federal Supply Class:
5305

National Item Identification Number:
012261942

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:

651-8109-001

13499

ROCKWELL COLLINS, INC.

Techincal Specification:

THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD DIAMETER	0.164 INCHES
THREAD QUANTITY PER INCH	32
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.630 INCHES MINIMUM
FASTENER LENGTH	4.940 INCHES NOMINAL
MATERIAL	STEEL COMP 630 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	AMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
	PAINT HEAD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
	580-0532-001,FSCM 13499 MFR REF SINGLE TREATMENT RESPONSE HEAD
HARDNESS RATING	35.0 ROCKWELL C MINIMUM AND
	42.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLE	FLAT CHAMFER
HEAD DIAMETER	0.250 INCHES NOMINAL
HEAD HEIGHT	0.220 INCHES NOMINAL
INTERNAL DRIVE STYLE	SLOT
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FIRST DIAMETER FROM HEAD	0.173 INCHES MINIMUM AND
	0.203 INCHES MAXIMUM
SECOND DIAMETER FROM HEAD	0.139 INCHES MINIMUM AND
	0.145 INCHES MAXIMUM
THIRD DIAMETER FROM HEAD	0.159 INCHES MINIMUM AND
	0.165 INCHES MAXIMUM
FOURTH DIAMETER FROM HEAD	0.173 INCHES MINIMUM AND
	0.203 INCHES MAXIMUM
FIFTH DIAMETER FROM HEAD	0.297 INCHES MINIMUM AND
	0.327 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.617 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	1.252 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	1.747 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER	3.970 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIFTH DIAMETER	4.060 INCHES NOMINAL

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