Model: 258855

Externally Relieved Body Bolt

Properties:

Thread Direction
Right-hand
Thread Length
Between 0.460 inches and 0.480 inches
Fastener Length
Between 1.770 inches and 1.790 inches
Head Style
Hexagon
Head Height
Between 0.193 inches and 0.213 inches
Width Between Flats
0.500 inches
Hole Diameter
0.062 inches
First Diameter From Head
Between 0.309 inches and 0.312 inches
Second Diameter From Head
Between 0.229 inches and 0.233 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
Between 0.115 inches and 0.135 inches
Distance From Largest Bearing Surface Of Head To End Of Second Diameter
Between 1.175 inches and 1.195 inches
Thread Diameter
0.312 inches
Nonstandard Thread Pitch Diameter
+0.2800/+0.2824 inches
Thready Qty Per Inch (tpi)
24
Hardness Rating
30.0 rockwell c and 38.0 rockwell c
Hole Configuration Style
Hexagon flats
Externally Relieved Body Diameter Quantity
2
Material
Steel
Material Specification
Pwa722, fscm 77445 mfr ref single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Pwa43, fscm 77445 mfr ref single treatment response
Thread Series Designator
Unf
NSN
5306-00-208-7652
Part Number
258855
Description
Bolt,externally Relieved Body
CAGE
77445

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 258855 NSN 5306-00-208-7652

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

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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