Model: B4145-12-28

Externally Relieved Body Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 1.035 inches and 1.065 inches
Fastener Length
Between 2.485 inches and 2.515 inches
Head Style
Double hexagon
Head Height
0.580 inches
Width Between Flats
Between 1.052 inches and 1.064 inches
First Diameter From Head
Between 0.660 inches and 0.665 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
Between 1.420 inches and 1.480 inches
Point Style
Flat
Thread Diameter
0.750 inches
Features Provided
Finished head
Thready Qty Per Inch (tpi)
16
Min. Tensile Strength (psi)
220000 pounds per square inch
Externally Relieved Body Diameter Quantity
1
Material
Nickel alloy 718
Material Specification
Ams 5662 assn standard single material response or ams 5663 assn standard single material response or asm 5664 assn standard single material response
Thread Series Designator
Unjf
NSN
5306-01-324-6711
Part Number
B4145-12-28
Description
Bolt,externally Relieved Body
CAGE
56878

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 B4145-12-28 NSN 5306-01-324-6711

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:
A
ESD:
ESD:
MMAC:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

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: 7508900000
  • SITC: 69975
  • End Use: Finished metal shapes
  • NAICS: 332999
  • USDA: 1

Freight Class: Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire)

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