Model: NAS1271-8

Shear Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.485 inches
Fastener Length
1.490 inches
Head Style
Double hexagon w/hole
Head Height
Between 0.290 inches and 0.310 inches
Width Between Flats
0.306 mils
Extended Washer Diameter
0.428 mils and 0.438 centimeters
Extended Washer Thickness
Between 0.059 inches and 0.079 inches
Grip Diameter
0.500 inches
End Application
Nimrod 2000
Thread Diameter
0.250 inches
Grip Length
0.985 inches
Thready Qty Per Inch (tpi)
28
Min. Tensile Strength (psi)
160000 pounds per square inch
Material
Titanium alloy uns r56400
Material Specification
Nas4004 6al4v assn standard single material response
Thread Series Designator
Unjf
NSN
5306-01-576-3320
Part Number
NAS1271-8
Description
Bolt,shear
CAGE

A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.

Part NAS1271-8 NSN 5306-01-576-3320

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15903
FIIG:
A003B0
Concept No.:
App. Key:
BX
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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