5305-01-397-3352, SCREW,EXTERNALLY RELIEVED BODY

5305-01-397-3351 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-397-3352

Federal Supply Class:
5305

National Item Identification Number:
013973352

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:

AVL321-1	84256	AVIBANK MFG., INC.
PC91049-1	09344	ROCKWELL COLLINS, INC. DBA RC DISPLAYS SYSTEMS

Techincal Specification:

COLOR	BLACK OVERALL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.195 INCHES MINIMUM AND 0.205 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.280 INCHES MINIMUM AND 0.320 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM
HEAD DIAMETER	0.205 INCHES MINIMUM AND 0.219 INCHES MAXIMUM
HEAD HEIGHT	0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM
HEAD STYLE	PAN
INTERNAL DRIVE STYLE	CROSS RECESS TYPE III
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-763 FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIAL	STEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER	0.112 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-C-13924, CLASS 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	OXIDE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.150 INCHES MAXIMUM
THREAD QUANTITY PER INCH	40
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)

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