5305-00-914-8824, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-914-8824

Federal Supply Class:
5305

National Item Identification Number:
009148824

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:

A02C102-1	77272	THE BOEING COMPANY
A02C2102-1	77272	THE BOEING COMPANY

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	5.363 INCHES NOMINAL FIRST HOLE
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	4.922 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	5.072 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	5.490 INCHES MINIMUM AND 5.550 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.748 INCHES NOMINAL
HEAD DIAMETER	1.000 INCHES NOMINAL
HEAD HEIGHT	0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM
HEAD STYLE	FLAT CHAMFER
INTERNAL DRIVE STYLE	SLOT
MATERIAL	STEEL OVERALL
NOMINAL THREAD DIAMETER	0.500 INCHES
SECOND DIAMETER FROM HEAD	0.421 INCHES MINIMUM AND 0.428 INCHES MAXIMUM
SHANK UNTHREADED HOLE DIAMETER	0.106 INCHES MINIMUM AND 0.108 INCHES MAXIMUM FIRST HOLE
SPECIAL FEATURES	CASEHARDENING PERTAINS TO LG FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIA
SURFACE TREATMENT	CADMIUM OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.418 INCHES MINIMUM AND 0.478 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	20

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