Model: 801520-3

Internally Relieved Body Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.484 inches and 0.563 inches
Fastener Length
Between 1.750 inches and 1.797 inches
Head Style
Hexagon
Head Height
Between 0.328 inches and 0.360 inches
Width Between Flats
Between 0.928 inches and 0.940 inches
Concentric Hole Diameter
0.437 inches
Thread Diameter
0.625 inches
Thready Qty Per Inch (tpi)
18
Min. Tensile Strength (psi)
125000 pounds per square inch
Hardness Rating
26.0 rockwell c and 32.0 rockwell c
Material
Steel comp 4140 or steel comp 8740 or steel comp 8640 or steel comp 8735 or steel comp 4130 or steel comp 4037
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416 type 2 class 3 federal specification single treatment response
Style Designator
Concentric hole unthreaded
Thread Series Designator
Unf
NSN
5306-01-159-5724
Part Number
801520-3
Description
Bolt,internally Relieved Body
CAGE
29780

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 801520-3 NSN 5306-01-159-5724

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:
A
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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