5306-01-241-3910, BOLT,SHEAR

National Stock Number:
5306-01-241-3910

Federal Supply Class:
5306

National Item Identification Number:
012413910

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:

SS5211-6-18	06725	SPS TECHNOLOGIES, LLC
SS5211-6-18	0UCY9	M.S. AEROSPACE INC.
SS5211-6-18	1RC86	HOWMET GLOBAL FASTENING SYSTEMS INC
SS5211-6-18	27624	SPS TECHNOLOGIES LLC
SS5211-6-18	4GP55	ACUFAST AIRCRAFT PRODUCTS
SS5211-6-18	56878	SPS TECHNOLOGIES, LLC
SS5211-6-18	78286	SIKORSKY AIRCRAFT CORPORATION
SS5211-6-18	84256	AVIBANK MFG., INC.
SS5211-6-18	92215	HOWMET GLOBAL FASTENING SYSTEMS INC

Techincal Specification:

EXTENDED WASHER DIAMETER	0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.081 INCHES MINIMUM AND 0.101 INCHES MAXIMUM
FASTENER LENGTH	1.812 INCHES MINIMUM AND 1.842 INCHES MAXIMUM
GRIP DIAMETER	0.3734 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM
GRIP LENGTH	1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM
HARDNESS RATING	39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.378 INCHES MINIMUM AND 0.398 INCHES MAXIMUM
HEAD STYLE	DOUBLE HEXAGON EXTENDED WASHER
NOMINAL THREAD DIAMETER	0.375 INCHES
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-8844 CL 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 4340 OVERALL
MINIMUM TENSILE STRENGTH	180000 POUNDS PER SQUARE INCH
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.677 INCHES MINIMUM AND 0.727 INCHES MAXIMUM
THREAD QUANTITY PER INCH	24
THREAD SERIES DESIGNATOR	UNJF
WIDTH BETWEEN FLATS	0.438 INCHES NOMINAL
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH	32.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 24901-3 ASSN STD 1ST TREATMENT RESPONSE AND QQ-P-416 TY 2 ASSN STD 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM AND CHROMATE OVERALL

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