5305-00-229-8633, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-229-8633

Federal Supply Class:
5305

National Item Identification Number:
002298633

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:

0N159231

98230

NATIONAL SECURITY AGENCY

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.092 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.069 INCHES NOMINAL
ASKEWED HEAD ANGLE	90.0 DEGREES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.246 INCHES MAXIMUM
FEATURES PROVIDED	CASEHARDENED
FIRST DIAMETER FROM HEAD	0.123 INCHES NOMINAL
HEAD DIAMETER	0.280 INCHES NOMINAL
HEAD HEIGHT	0.032 INCHES MINIMUM AND 0.038 INCHES MAXIMUM
HEAD STYLE	PAN NO. 2
INTERNAL DRIVE STYLE	SLOT
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 630 OVERALL
NOMINAL THREAD DIAMETER	0.093 INCHES
NONSTANDARD THREAD PITCH DIAMETER	+0.0733 TO 0.0753 INCHES
SECOND DIAMETER FROM HEAD	0.080 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-STD-171 MIL STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.154 INCHES MAXIMUM
THREAD QUANTITY PER INCH	64
THREAD SERIES DESIGNATOR	UNF

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