5305-01-059-1902, SCREW,EXTERNALLY RELIEVED BODY

5306-01-059-1901 BOLT,MACHINE

5305-01-059-1903 SCREW,MACHINE

National Stock Number:
5305-01-059-1902

Federal Supply Class:
5305

National Item Identification Number:
010591902

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:

7541006P0001	99971	LOCKHEED MARTIN CORP NAVAL ELECTRONICS & SURVEILLANCE SYSTEMS
7541006P1	99971	LOCKHEED MARTIN CORP NAVAL ELECTRONICS & SURVEILLANCE SYSTEMS

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.237 INCHES MINIMUM AND 0.277 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.377 INCHES MINIMUM AND 0.397 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.071 INCHES MINIMUM AND 0.081 INCHES MAXIMUM
HEAD DIAMETER	0.223 INCHES MINIMUM AND 0.235 INCHES MAXIMUM
HEAD HEIGHT	0.056 INCHES MINIMUM AND 0.068 INCHES MAXIMUM
HEAD STYLE	BINDING
INTERNAL DRIVE STYLE	SLOT
MATERIAL	STEEL OVERALL
NOMINAL THREAD DIAMETER	0.112 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM AND CHROMATE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.120 INCHES MINIMUM AND 0.140 INCHES MAXIMUM
THREAD QUANTITY PER INCH	40
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)

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