Model: 538026

Internally Relieved Body Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.842 inches
Fastener Length
7.562 inches
Head Style
Hexagon
Head Height
0.375 inches
Width Between Flats
2.000 inches
Hole Diameter
0.072 inches
Shank Unthreaded Hole Diameter
0.190 inches first hole and 0.195 inches first hole
Counterbore Diameter
0.625 inches
Counterbore Depth
1.810 inches
Concentric Hole Diameter
0.500 inches
Thread Diameter
1.250 inches
Thready Qty Per Inch (tpi)
12
Min. Tensile Strength (psi)
180000 pounds per square inch
Hole Configuration Style
Hexagon longitudinal hole
Distance From Head Largest Bearing Surface To Shank Hole Center
6.934 inches first hole and 6.944 inches first hole
Material
Steel comp e4340
Material Specification
Mil-s-5000 military specification single material response
Surface Treatment
Cadmium threads
Surface Treatment
Chromium grip
Surface Treatment
Cadmium head
Style Designator
Counterbore unthreaded
Thread Series Designator
Unf
NSN
5306-00-697-0972
Part Number
538026
Description
Bolt,internally Relieved Body
CAGE
17576

An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see bolt, fluid passage.

Part 538026 NSN 5306-00-697-0972

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06676
FIIG:
A003B0
Concept No.:
App. Key:
BN
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

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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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