Model: 726726-4

Machine Bolt

Special Features:

2 holes intersecting 90 degrees apart

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.890 inches and 0.950 inches
Fastener Length
4.645 inches
Head Style
Double hexagon w/hole
Head Height
0.388 inches
Width Between Flats
Between 0.430 inches and 0.439 inches
Extended Washer Diameter
Between 0.639 inches and 0.649 inches
Extended Washer Thickness
0.091 inches
Shank Unthreaded Hole Diameter
0.099 inches all holes and 0.114 inches all holes
Thread Diameter
0.375 inches
Grip Length
Between 3.695 inches and 3.755 inches
Features Provided
Finished head
Thready Qty Per Inch (tpi)
24
Hardness Rating
40.0 rockwell c and 44.0 rockwell c
Distance From Head Largest Bearing Surface To Shank Hole Center
4.445 inches all holes
Surface Finish
32.0 microinches bearing surface of head
Surface Finish
32.0 microinches grip
Surface Finish
32.0 microinches threads
Part Name Assigned By Controlling Agency
Navy special project
Material
Steel comp 8740
Material Specification
Ams6322 assn standard single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Ams2401 assn standard single treatment response
Thread Series Designator
Unjf
NSN
5306-01-077-3881
Part Number
726726-4
Description
Bolt,machine
CAGE
73030

An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. the threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. for items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.

Part 726726-4 NSN 5306-01-077-3881

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01847
FIIG:
A003B0
Concept No.:
App. Key:
BR
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

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: 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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