Model: 76957-1

Externally Relieved Body Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
1.531 inches
Fastener Length
13.375 inches
Head Style
Dee chamfer
Head Diameter
2.000 inches
Head Height
1.000 inches
Distance From Centerline To Flat
0.688 inches
Shank Unthreaded Hole Diameter
0.219 inches first hole
First Diameter From Head
Between 1.025 inches and 1.035 inches
Second Diameter From Head
Between 1.123 inches and 1.124 inches
Third Diameter From Head
Between 1.025 inches and 1.035 inches
Fourth Diameter From Head
Between 1.123 inches and 1.124 inches
Fifth Diameter From Head
Between 1.025 inches and 1.035 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
0.500 inches
Distance From Largest Bearing Surface Of Head To End Of Second Diameter
0.875 inches
Distance From Largest Bearing Surface Of Head To End Of Third Diameter
3.313 inches
Distance From Largest Bearing Surface Of Head To End Of Fourth Diameter
5.188 inches
Distance From Largest Bearing Surface Of Head To End Of Fifth Diameter
8.999 inches
Thread Diameter
1.125 inches
Thready Qty Per Inch (tpi)
12
Hardness Rating
25.0 rockwell c and 30.0 rockwell c
Distance From Head Largest Bearing Surface To Shank Hole Center
12.888 inches first hole
Externally Relieved Body Diameter Quantity
5
Material
Steel comp 4140
Material Specification
66 federal standard single material response
Thread Series Designator
Unf
NSN
5306-00-416-2104
Part Number
76957-1
Description
Bolt,externally Relieved Body
CAGE
14541

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 76957-1 NSN 5306-00-416-2104

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:
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:
M
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: 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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