Model: A51B20586-13

Shoulder Bolt
Description:

3a thread class, right-hand , 0.293 inches thread length, 1.547 inches fastener length, round w/wrench flats head style, 1.000 inches head diameter.

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.293 inches and 0.313 inches
Fastener Length
Between 1.547 inches and 1.552 inches
Head Style
Round w/wrench flats
Head Diameter
1.000 inches
Head Height
Between 0.140 inches and 0.150 inches
Width Between Flats
Between 0.928 inches and 0.940 inches
Shoulder Diameter
0.6226 inches first shoulder and 0.6232 inches first shoulder
Shoulder Length
1.140 inches first shoulder and 1.145 inches first shoulder
Shank Unthreaded Hole Diameter
0.106 inches first hole and 0.116 inches first hole
Thread Diameter
0.375 inches
Thready Qty Per Inch (tpi)
24
Min. Tensile Strength (psi)
220000 pounds per square inch
Hardness Rating
46.0 rockwell c and 49.0 rockwell c
Distance From Head Largest Bearing Surface To Shank Hole Center
1.350 inches first hole and 1.355 inches first hole
Shoulder Shape
Round first shoulder
Material
Steel
Material Specification
G-1010, fsc-26512 mfr ref single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Mil-c-8837, type 2, class 1 military specification single treatment response
Test Data Document
81349-mil-i-6868 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Thread Series Designator
Unjf
NSN
5306-00-004-4929
Part Number
A51B20586-13
Description
Bolt,shoulder
CAGE

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than no. 10 (0.190 in.) (5 mm) and those items with an inserted drive head, use screw, shoulder. For items which are no. 10 (0.190 in.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use bolt, externally relieved body. Excludes thumbscrew.

Part A51B20586-13 NSN 5306-00-004-4929

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
04905
FIIG:
A003B0
Concept No.:
App. Key:
BY
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
573
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7318152000
  • SITC: 69421
  • End Use: Iron and steel products, other
  • NAICS: 332722
  • USDA: 1

Freight Class: Bolts and bolts and their nuts or washers exported in the same shipment

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