Model: 212204

Externally Relieved Body Bolt

Properties:

Thread Class
1a
Thread Direction
Right-hand
Thread Length
Between 0.350 inches and 0.370 inches
Fastener Length
Between 1.700 inches and 1.720 inches
Head Style
Hexagon
Head Height
Between 0.180 inches and 0.200 inches
Width Between Flats
Between 0.555 inches and 0.564 inches
Shank Unthreaded Hole Diameter
0.065 inches first hole and 0.075 inches first hole
First Diameter From Head
Between 0.372 inches and 0.373 inches
Second Diameter From Head
Between 0.210 inches and 0.230 inches
Third Diameter From Head
Between 0.372 inches and 0.373 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
Between 0.130 inches and 0.150 inches
Distance From Largest Bearing Surface Of Head To End Of Second Diameter
Between 1.060 inches and 1.100 inches
Distance From Largest Bearing Surface Of Head To End Of Third Diameter
Between 1.190 inches and 1.210 inches
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
28
Hardness Rating
30.0 rockwell c and 38.0 rockwell c
Distance From Head Largest Bearing Surface To Shank Hole Center
1.590 inches first hole and 1.610 inches first hole
Externally Relieved Body Diameter Quantity
3
Material
Stainless steel
Material Specification
Ams 5616 assn standard single material response
Thread Series Designator
Unf
NSN
5306-00-031-6357
Part Number
212204
Description
Bolt,externally Relieved Body
CAGE
93907

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 212204 NSN 5306-00-031-6357

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:
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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