Model: NAS1271-5

Machine Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.485 inches
Fastener Length
0.860 inches
Head Style
Double hexagon extended washer
Head Height
Between 0.290 inches and 0.310 inches
Width Between Flats
Between 0.306 inches and 0.315 inches
Extended Washer Diameter
0.360 inches
Extended Washer Thickness
0.059 inches
Thread Diameter
0.250 inches
Grip Length
0.375 inches
Features Provided
Finished head
Thready Qty Per Inch (tpi)
28
Surface Finish
16.0 microinches threads
Surface Finish
63.0 microinches bearing surface of head
Surface Finish
63.0 microinches grip
Material
Titanium alloy uns r56400
Material Specification
As-4967 assn standard single material response
Thread Series Designator
Unjf
Specification Data
80205-nas1271 professional/industrial association standard
NSN
5306-01-573-2774
Part Number
NAS1271-5
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 NAS1271-5 NSN 5306-01-573-2774

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:
A
ESD:
A
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 8108908000
  • SITC: 69985
  • End Use: Nonferrous metals, other
  • NAICS: 331491
  • USDA: 1

Freight Class: Other wrought titanium, nesoi

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