National Item Identification Number

01-250-4641
012504641
5306-01-250-4641
5306012504641

National Stock Number

Item Name

BOLT,SHEAR

Federal Supply Class

5306

Description

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.

Commercial and Government Entity Code (Supplier Data)

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06725

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73197

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27624

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76301

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92215

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17446

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06710

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06950

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ALCOA GLOBAL FASTENERS INC
DIV CITY OF INDUSTRY OPERATIONS
13001 TEMPLE AVE
LA PUENTE
CA
91746
805-991-1270

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92215

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80539

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Reference Numbers (Part Numbers)

AIC763-7H19
MB156-7H19
PBF1267-7H19
ST3M753-7H19
ST3M753-7H19
S343-7H19
S3

Required Categories

THREAD SERIES DESIGNATOR
NOMINAL THREAD DIAMETER
THREAD QUANTITY PER INCH
THR

Required Description

UNJF
0.437 INCHES
20
3A
RIGHT-HAND
0.680 INCHES MINIMUM AND
0.730 INCHES M