Model: 81507

Externally Relieved Body Bolt

Special Features:

1/2 in. Radius on 3rd diameter from head and heat treated mfr 06853 147.P

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.594 inches
Fastener Length
1.469 inches
Head Style
Dee
Head Diameter
0.469 inches
Head Height
0.185 inches
Distance From Centerline To Flat
0.149 inches
Shank Unthreaded Hole Diameter
0.076 inches first hole
First Diameter From Head
0.312 inches
Third Diameter From Head
0.285 inches
Fourth Diameter From Head
0.312 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
0.125 inches
Distance From Largest Bearing Surface Of Head To End Of Second Diameter
0.312 inches
Distance From Largest Bearing Surface Of Head To End Of Third Diameter
0.562 inches
Distance From Largest Bearing Surface Of Head To End Of Fourth Diameter
0.875 inches
Thread Diameter
0.312 inches
Thready Qty Per Inch (tpi)
24
Distance From Head Largest Bearing Surface To Shank Hole Center
1.315 inches first hole and 1.329 inches first hole
Externally Relieved Body Diameter Quantity
4
Material
Steel or steel comp 4140 or steel comp 4037
Material Specification
Bw-218-m fscm 06853 mfr ref 1st material response or ts-80-b-37 fscm 06853 mfr ref 1st material response
Thread Series Designator
Unf
Reference Number Differentiating Characteristics
As differentiated by material and head dimensions
NSN
5306-00-534-6178
Part Number
81507
Description
Bolt,externally Relieved Body
CAGE
65282

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 81507 NSN 5306-00-534-6178

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:
4.0000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
SPI No.:
SPI Rev.:
SPC Mkg:
LVL_A:
LVL_B:

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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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