5306-01-616-3149, BOLT,SHEAR

National Stock Number:
5306-01-616-3149

Federal Supply Class:
5306

National Item Identification Number:
016163149

Description:
BOLT,SHEAR

Detail:
A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. A locking feature may be incorporated in the design of the head or threads. See BOLT, MACHINE and BOLT, CLEVIS.

Manufacturer Information:

6736617	53711	NAVAL SEA SYSTEMS COMMAND
6736617-4	05606	GENERAL DYNAMICS-OTS, INC.
6736617-4	53711	NAVAL SEA SYSTEMS COMMAND

Techincal Specification:

THREAD SERIES DESIGNATOR	UNJF
NOMINAL THREAD DIAMETER	0.3125 INCHES
THREAD QUANTITY PER INCH	24
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.579 INCHES MINIMUM
FASTENER LENGTH	0.849 INCHES NOMINAL
MATERIAL	STEEL COMP 4140 OR
	STEEL COMP E4340 OR
	STEEL COMP 4340 OR
	STEEL COMP 8740 OR
	STEEL COMP 6150 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	AMS6382 NATIONAL STD/SPEC 1ST MATERIAL RESPONSE OR
	AMS-S-5000 OR AMS6484 NATIONAL STD/SPEC 2ND MATERIAL RESPONSE OR
	AMS6415 NATIONAL STD/SPEC 3RD MATERIAL RESPONSE OR
	AMS6322 OR 6150 NATIONAL STD/SPEC 4TH MATERIAL RESPONSE OR
	AMS6448 NATIONAL STD/SPEC 5TH MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TYPE II,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	39.0 ROCKWELL C MINIMUM AND
	43.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	180000 POUNDS PER SQUARE INCH
HEAD STYLE	DOUBLE HEXAGON EXTENDED WASHER
HEAD HEIGHT	0.338 INCHES MINIMUM AND
	0.358 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.3750 INCHES NOMINAL
EXTENDED WASHER DIAMETER	0.521 INCHES MINIMUM AND
	0.531 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.072 INCHES MINIMUM AND
	0.092 INCHES MAXIMUM
GRIP LENGTH	0.240 INCHES MINIMUM AND
	0.260 INCHES MAXIMUM
GRIP DIAMETER	0.3110 INCHES MINIMUM AND
	0.3120 INCHES MAXIMUM
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD
FEATURES PROVIDED	DRY FILM LUBRICANT
SPECIAL FEATURES	ITEM IS ALTERED FROM MS21250-05004 WITH DRY FILM LUBRICANT 5191127 APPLIED TO ALL SURFACES EXCEPT OMIT FROM THREADS;SURFACE ROUGHNESS 32 MICROINCHES ON SHANK AND BEARING SURFACE OF HEAD, ALL OTHER SURFACES ARE 125 MICROINCHES
SPECIFICATION/STANDARD DATA	80205-NASM21250 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
PART NAME ASSIGNED BY CONTROLLING AGENCY	BOLT,MACHINE

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