Model: NAS568-81

Machine Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 2.455 inches and 2.532 inches
Fastener Length
Between 2.515 inches and 2.562 inches
Head Style
Hexagon
Head Height
Between 0.365 inches and 0.385 inches
Width Between Flats
Between 0.740 inches and 0.752 inches
Hole Diameter
Between 0.070 inches and 0.080 inches
Thread Diameter
0.500 inches
Grip Length
Between 0.030 inches and 0.060 inches
Hole Quantity
3
Hole Type
Drilled
Features Provided
Finished head
Thready Qty Per Inch (tpi)
20
Min. Tensile Strength (psi)
160000 pounds per square inch
Hardness Rating
36.0 rockwell c and 40.0 rockwell c
Hole Configuration Style
Hexagon corners
Material
Steel comp 4140 or steel comp 8740 or steel comp 8630 or steel comp 8735 or steel comp 4140 or steel comp 4037
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, type 2 cl 2 federal specification single treatment response
Thread Series Designator
Unjf
Specification Data
80205-nas568 professional/industrial association standard
NSN
5306-01-252-1369
Part Number
NAS568-81
Description
Bolt,machine
CAGE
80205

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 NAS568-81 NSN 5306-01-252-1369

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:
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:
0.1000lbs
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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