5306-00-397-1790, BOLT,EXTERNALLY RELIEVED BODY

5305-00-397-1793 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-397-1790

Federal Supply Class:
5306

National Item Identification Number:
003971790

Description:
BOLT,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 undercuts for thread relief). It is No. 10 (0.190 IN.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, INTERNAL WRENCHING and THUMBSCREW. See also SCREW, EXTERNALLY RELIEVED BODY.

Manufacturer Information:

403R815H01

97942

NORTHROP GRUMMAN SYSTEMS CORPORATION

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.730 INCHES MINIMUM AND 0.770 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	2.450 INCHES MINIMUM AND 2.490 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.319 INCHES MINIMUM AND 0.329 INCHES MAXIMUM
HEAD HEIGHT	0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM
HEAD STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 5TH MATERIAL RESPONSE OR AMS 6300 ASSN STD 6TH MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4140 OR STEEL COMP 4130 OR STEEL COMP 4037 OVERALL
NOMINAL THREAD DIAMETER	0.375 INCHES
WIDTH BETWEEN FLATS	0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.530 INCHES MINIMUM AND 0.610 INCHES MAXIMUM
THREAD QUANTITY PER INCH	24
THREAD SERIES DESIGNATOR	UNF

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