5305-01-236-0313, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-236-0313

Federal Supply Class:
5305

National Item Identification Number:
012360313

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:

LP51957-14	03038	LONG-LOK, LLC
SM-C-808713-1	80063	US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.108 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.312 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.0925 INCHES MINIMUM AND 0.1120 INCHES MAXIMUM
FSC APPLICATION DATA	PERISCOPE SUBASSEMBLY
HEAD DIAMETER	0.205 INCHES MINIMUM AND 0.219 INCHES MAXIMUM
HEAD HEIGHT	0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM
HEAD STYLE	PAN
INTERNAL DRIVE STYLE	CROSS RECESS TYPE 1
LOCKING FEATURE	LOCKING TEETH THREADS
MATERIAL DOCUMENT AND CLASSIFICATION	ED-STD-66 FED STD 5TH MATERIAL RESPONSE OVERALL
MATERIAL	STEEL CORROSION RESISTING OVERALL
MINIMUM TENSILE STRENGTH	480 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.112 INCHES
SPECIAL FEATURES	THD RELIEVED TO 0.0925 IN. MIN DIA TO 0.1120 IN. MAX DIA FROM BEARING SURFACE OF HEAD FOR 1/3 OF LG TOWARDS SCREW POINT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35,TYPE 4 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD LENGTH	0.208 INCHES NOMINAL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD QUANTITY PER INCH	40
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)

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