5305-01-303-9275, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-303-9275

Federal Supply Class:
5305

National Item Identification Number:
013039275

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:

12577041	19200	US ARMY ARDEC RDECOM
12577041	19206	ARMY, UNITED STATES DEPARTMENT OF THE BUSINESS DEVELOPMENT DBA WATERVLIET ARSENAL
B-75	1511A	SOLTAM SYSTEMS LTD.
B-75	2291A	ELBIT SYSTEMS C4I AND CYBER LTD
B-75	S3151	SOLTAM SYSTEMS LTD. DBA SOLTAM LTD.

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	1.0 MILLIMETERS NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	4.0 MILLIMETERS NOMINAL
COUNTERSINK ANGLE	90.0 DEGREES NOMINAL
EXTERNAL THREAD TOLERANCE CLASS	6G
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	4.0 MILLIMETERS NOMINAL
FIRST DIAMETER FROM HEAD	2.9 MILLIMETERS NOMINAL
HEAD DIAMETER	6.0 MILLIMETERS NOMINAL
HEAD STYLE	FLAT COUNTERSUNK
INTERNAL DRIVE STYLE	SLOT
MATERIAL	STEEL COMP 1137 OVERALL
PROPRIETARY CHARACTERISTICS	PACS
NOMINAL THREAD DIAMETER	4.0 MILLIMETERS
SECOND DIAMETER FROM HEAD	1.5 MILLIMETERS NOMINAL
SPECIAL FEATURES	SCREW END CHAMFERED 0.5MM TO 45 DEGREES;DRIVE SLOT WIDTH 0.8MM,1.0MM DEEP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-P-16232E MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PHOSPHATE MANGANESE OVERALL
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.5 MILLIMETERS NOMINAL
THREAD SERIES DESIGNATOR	ISO M
THREAD PITCH IN MILLIMETERS	0.7

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