Model: 538838

Internally Relieved Body Bolt

Special Features:

Zinc chromate finish on concentric hole

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.482 inches
Fastener Length
3.595 inches
Head Style
Dee
Head Diameter
1.375 inches
Head Height
0.125 inches
Distance From Centerline To Flat
Between 0.495 inches and 0.500 inches
Shoulder Diameter
Between 0.873 inches and 0.874 inches
Shoulder Length
2.975 inches
Shank Unthreaded Hole Diameter
0.143 inches first hole and 0.148 inches first hole
Concentric Hole Depth
2.810 inches
Concentric Hole Diameter
0.562 inches
Thread Diameter
0.750 inches
Thready Qty Per Inch (tpi)
16
Min. Tensile Strength (psi)
200000 pounds per square inch
Distance From Head Largest Bearing Surface To Shank Hole Center
3.400 inches first hole
Material
Steel
Material Specification
Mil-s-5626 military specification single material response or ams 6382 assn standard single material response
Surface Treatment
Cadmium threads
Surface Treatment
Chromium grip
Surface Treatment
Cadmium head
Surface Treatment Specification
Mil-p-6871 type 1 military specification single treatment response grip
Surface Treatment Specification
Qq-p-416 type 1 federal specification single treatment response head
Surface Treatment Specification
Qq-p-416 type 1 federal specification single treatment response threads
Style Designator
Concentric hole unthreaded
Thread Series Designator
Unf
NSN
5306-00-341-7422
Part Number
538838
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 538838 NSN 5306-00-341-7422

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:
LE
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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