5305-01-062-3674, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-062-3674

Federal Supply Class:
5305

National Item Identification Number:
010623674

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:

4685194-0009	96169	ELECTRIC BOAT CORPORATION
704-4685194 ITEM 9	80064	NAVAL SHIP SYSTEMS COMMAND
87861-1506ITEM10	96169	ELECTRIC BOAT CORPORATION

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER	0.630 INCHES MINIMUM AND 0.815 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.435 INCHES MINIMUM AND 0.535 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	0.470 INCHES MINIMUM AND 0.655 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	4
FASTENER LENGTH	3.180 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.672 INCHES MINIMUM AND 0.673 INCHES MAXIMUM
FOURTH DIAMETER FROM HEAD	0.540 INCHES MAXIMUM
HEAD HEIGHT	0.380 INCHES NOMINAL
HEAD STYLE	HEXAGON
HOLE DIAMETER	0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM
HOLE CONFIGURATION STYLE	HEXAGON CORNERS
HOLE QUANTITY	3
HOLE TYPE	DRILLED
INTERNAL DRIVE STYLE	W/O INTERNAL DRIVE
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-281 CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	NICKEL ALLOY 400 OVERALL
NOMINAL THREAD DIAMETER	0.625 INCHES
POINT LENGTH	0.440 INCHES NOMINAL
POINT STYLE	DOG
POINT DIAMETER	0.310 INCHES NOMINAL
SPECIAL FEATURES	FIRST DIA AFTER THREADS 1.060 IN. NOM LTH AND 0.535 IN. MIN,0.540 IN. MAX DIA
WIDTH BETWEEN FLATS	0.937 INCHES NOMINAL
THIRD DIAMETER FROM HEAD	0.672 INCHES MINIMUM AND 0.673 INCHES MAXIMUM
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.120 INCHES NOMINAL
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	18

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