Product Details | EXTERNALLY RELIEVED BODY BOLT

5306-01-272-0377 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.

Part Alternates: 176C21413, 176C2141-3, 5306-01-272-0377, 01-272-0377, 5306012720377, 012720377

Hardware and Abrasives | Bolts

Supply Group (FSG) NSN Assign. NIIN
53 03 FEB 1988 01-272-0377

Drawings & Photos | NSN 5306-01-272-0377


Cross Reference | NSN 5306-01-272-0377

Part Number Cage Code Manufacturer
176C2141-3 05606 GENERAL DYNAMICS-OTS, INC. DBA GD-OTS (WILLISTON)

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Technical Data | NSN 5306-01-272-0377

Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER 0.500 INCHES
THREAD QUANTITY PER INCH 20
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 1.172 INCHES MINIMUM AND 1.234 INCHES MAXIMUM
FASTENER LENGTH 3.125 INCHES NOMINAL
MATERIAL IRON ALLOY 660 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HEAD STYLE C1 HEXAGON
HEAD HEIGHT 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM
WIDTH BETWEEN FLATS 0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM
HOLE CONFIGURATION STYLE E6 HEXAGON FLATS
HOLE TYPE DRILLED
HOLE QUANTITY 1
HOLE DIAMETER 0.062 INCHES MINIMUM AND 0.078 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY 1
FIRST DIAMETER FROM HEAD 0.410 INCHES MINIMUM AND 0.420 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER 1.891 INCHES MINIMUM AND 1.953 INCHES MAXIMUM
FEATURES PROVIDED FINISHED HEAD

Restrictions/Controls & Freight Information | NSN 5306-01-272-0377

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information