Model: 556441-1

Internally Relieved Body Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.783 inches and 0.787 inches
Fastener Length
3.110 inches
Head Style
Dee
Head Diameter
1.750 inches
Head Height
0.187 inches
Distance From Centerline To Flat
Between 0.724 inches and 0.734 inches
Shoulder Diameter
Between 1.123 inches and 1.124 inches
Shoulder Length
Between 1.823 inches and 1.827 inches
Concentric Hole Depth
Between 2.323 inches and 2.327 inches
Counterbore Diameter
Between 0.749 inches and 0.751 inches
Counterbore Depth
0.500 inches
Concentric Hole Diameter
0.500 inches
Thread Diameter
0.073 inches
Thready Qty Per Inch (tpi)
14
Material
Steel comp 4340
Style Designator
Counterbore unthreaded
Thread Series Designator
Unf
NSN
5306-00-344-3595
Part Number
556441-1
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 556441-1 NSN 5306-00-344-3595

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:
LE
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093460
UFC:
48930
LTL:
70.0
LCL:
70.0
WCC:
713
TCC:
Z
SHC:
Z
ACC:
Trailers/Vehicles

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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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