5306-00-407-9254, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-407-9254

Federal Supply Class:
5306

National Item Identification Number:
004079254

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:

SCB93177

80063

US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER	0.372 INCHES MINIMUM AND 0.376 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.122 INCHES MINIMUM AND 0.126 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	0.310 INCHES MINIMUM AND 0.314 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIFTH DIAMETER	1.342 INCHES MINIMUM AND 1.346 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.062 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	5
FASTENER LENGTH	1.904 INCHES MINIMUM AND 1.908 INCHES MAXIMUM
FIFTH DIAMETER FROM HEAD	0.499 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.875 INCHES NOMINAL
FOURTH DIAMETER FROM HEAD	0.016 INCHES NOMINAL
HEAD HEIGHT	0.565 INCHES NOMINAL
HEAD STYLE	HEXAGON
MATERIAL	STEEL COMP 303SE OVERALL
NOMINAL THREAD DIAMETER	0.375 INCHES
SECOND DIAMETER FROM HEAD	0.839 INCHES MINIMUM AND 0.849 INCHES MAXIMUM
SPECIAL FEATURES	THREAD RELIEF 0.062 IN. WIDTH BY 0.047 IN. DEPTH AND ENAMEL COLOR NO. 2430 OVER OLIVE DRAB PAINT
WIDTH BETWEEN FLATS	0.938 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	TT-C-595 FED SPEC 1ST TREATMENT RESPONSE AND TT-E-529 FED SPEC 2ND TREATMENT RESPONSE HEAD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	TT-C-595 FED SPEC 1ST TREATMENT RESPONSE AND TT-E-529 FED SPEC 2ND TREATMENT RESPONSE GRIP
SURFACE TREATMENT	PAINT AND ENAMEL GRIP
SURFACE TREATMENT	PAINT AND ENAMEL HEAD
SURFACE TREATMENT	PASSIVATE OVERALL
THIRD DIAMETER FROM HEAD	0.938 INCHES NOMINAL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.438 INCHES MINIMUM
THREAD QUANTITY PER INCH	24
THREAD SERIES DESIGNATOR	UNF

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