Model: 204-040-631-1

Externally Relieved Body Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.530 inches and 0.570 inches
Fastener Length
Between 3.290 inches and 3.310 inches
Head Style
Hexagon
Head Height
Between 0.250 inches and 0.297 inches
Width Between Flats
Between 0.740 inches and 0.750 inches
Hole Diameter
0.070 inches
First Diameter From Head
Between 0.495 inches and 0.499 inches
Second Diameter From Head
Between 0.280 inches and 0.300 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
Between 0.240 inches and 0.260 inches
Distance From Largest Bearing Surface Of Head To End Of Second Diameter
Between 2.740 inches and 2.760 inches
Thread Diameter
0.375 inches
Hole Quantity
1
Hole Type
Drilled
Thready Qty Per Inch (tpi)
24
Min. Tensile Strength (psi)
125000 pounds per square inch
Hole Configuration Style
Hexagon flats
Externally Relieved Body Diameter Quantity
2
Material
Steel comp 4140
Surface Treatment
Cadmium
Thread Series Designator
Unf
NSN
5306-00-633-0827
Part Number
204-040-631-1
Description
Bolt,externally Relieved Body
CAGE
97499

An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercuts for thread relief). It is no. 10 (0.190 in.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, internal wrenching and thumbscrew. See also screw, externally relieved body.

Part 204-040-631-1 NSN 5306-00-633-0827

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06675
FIIG:
A003B0
Concept No.:
App. Key:
BF
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:
GA
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
50.0
WCC:
713
TCC:
Z
SHC:
9
ACC:
Equipment for Aircraft

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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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