5305-99-700-6687, SCREW,EXTERNALLY RELIEVED BODY

2840-99-700-6713 SHIELD,HEAT,TURBINE ENGINE

National Stock Number:
5305-99-700-6687

Federal Supply Class:
5305

National Item Identification Number:
997006687

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:

SUM4079

K5294

GE AVIATION SYSTEMS LIMITED

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM
FASTENER LENGTH	0.250 INCHES NOMINAL AND 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.088 INCHES MINIMUM AND 0.093 INCHES MAXIMUM
HEAD DIAMETER	0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
HEAD HEIGHT	0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM
HEAD STYLE	PAN NO. 2
INTERNAL DRIVE STYLE	SLOT
MATERIAL DOCUMENT AND CLASSIFICATION	BS S147 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OR BS S154 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OR SMITHS INDUSTRIES SPEC 1200-002 MFR REF SINGLE MATERIAL RESPONSE
MATERIAL	STEEL
NOMINAL THREAD DIAMETER	0.138 INCHES
SPECIAL FEATURES	NOT CASEHARDENED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	SMITHS INDUSTRIES 0731-511 MFR REF SINGLE TREATMENT RESPONSE
SURFACE TREATMENT	CADMIUM
THREAD LENGTH	0.110 INCHES NOMINAL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD SERIES DESIGNATOR	UNC
THREAD QUANTITY PER INCH	-32

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