5305-01-237-9931, SCREW,EXTERNALLY RELIEVED BODY

5305-01-237-9930 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-237-9931

Federal Supply Class:
5305

National Item Identification Number:
012379931

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:

4053554	0UCY9	M.S. AEROSPACE INC.
4053554	2T287	CONDOR INDUSTRIES, LLC
4053554	77445	RTX CORPORATION

Techincal Specification:

COUNTERSINK ANGLE	100.0 DEGREES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.065 INCHES MINIMUM AND 0.105 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.142 INCHES MINIMUM AND 0.146 INCHES MAXIMUM
HEAD DIAMETER	0.472 INCHES MINIMUM AND 0.478 INCHES MAXIMUM
HEAD STYLE	FLAT COUNTERSUNK
INTERNAL DRIVE STYLE	SLOT
MATERIAL DOCUMENT AND CLASSIFICATION	AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER	0.190 INCHES
SPECIAL FEATURES	HOLE IN SHANK 0.100 IN. FROM END TO CENTER OF HOLE;HOLE MIN. 0.065 IN. MAX. 0.072 IN.
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)

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