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Cross Reference

These part numbers have the same form, fit, and function as ms21250-03020
Item Number Cage
MS21250-03020 80205
VFK100G-03020 06710

Technical Definition

Bolt, Shear, also referenced with federal logistics item name code 15903 - 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.

MS21250-03020

Description: Shear Bolt
Mfr. Cage 06710

Specification

Thread Length: 7/16", Fastener Length: 1-11/16", Thread: 10-32, Grip Length: 1-1/4", steel overall

AAJD Thread Class
3a
AAJF Thread Direction
Right-hand
AASA Thread Length
From 0.430" and 0.450"
AASB Fastener Length
1.690 inches
AASK Head Style
Double hexagon w/hole
AASU Head Height
0.265 inches
AATB Width Between Flats
From 0.243" and 0.251"
AATC Extended Washer Diameter
From 0.340" and 0.350"
AATD Extended Washer Thickness
0.055 inches
AAUR Grip Diameter
From 0.1885" and 0.1895"
AHYM Nominal Thread Diameter
0.190 inches
ANEE Grip Length
From 1.240" and 1.260"
CMLP Thready Qty Per Inch (tpi)
32
CQBC Minimum Tensile Strength
180000 pounds per square inch
CQFM Hardness Rating
39.0 rockwell c minimum and 43.0 rockwell c maximum
MATT Material
Steel
SFTT Surface Treatment
Cadmium and chromate
STDC Surface Treatment Spec
Qq-p-416,type 2,class2 fed spec single treatment response
THSD Thread Series Designator
Unjf
National Stock Number (NSN): 5306-00-001-4847

Last Modified: 02/14/2017