Model: NAS6706A10

Close Tolerance Bolt

Special Features:

Bolt has 95 ksi ultimate shear strength; 160-190 ksi ftu tensile strength; precipitation hardened per ams5853

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.578 inches
Fastener Length
Between 1.188 inches and 1.218 inches
Head Style
Hexagon
Head Height
Between 0.188 inches and 0.203 inches
Width Between Flats
Between 0.554 inches and 0.564 inches
Grip Diameter
Between 0.3735 inches and 0.3745 inches
Thread Diameter
0.3750 inches
Grip Length
Between 0.615 inches and 0.635 inches
Thready Qty Per Inch (tpi)
24
Min. Tensile Strength (psi)
160000 pounds per square inch
Surface Finish
32.0 microinches bearing surface of head
Surface Finish
32.0 microinches head
Surface Finish
32.0 microinches threads
Part Name Assigned By Controlling Agency
Bolt, hex head, close tolerance, a286 cres, long threads, self-locking and nonlocking
Material
Iron alloy 660
Material Specification
Cres a28 (uns s66286) iaw ams5731, 5732, 5737 or 5853 national standard single material response
Surface Treatment
Aluminum
Surface Treatment Specification
Nas4006 national std/spec single treatment response
Thread Series Designator
Unjf
Specification Data
80205-nas6703 through 6720 professional/industrial association standard
NSN
5306-01-642-4288
Part Number
NAS6706A10
Description
Bolt,close Tolerance
CAGE

An externally threaded fastener whose unthreaded portion is of a specified 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. 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. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

Part NAS6706A10 NSN 5306-01-642-4288

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
27851
FIIG:
A003B0
Concept No.:
App. Key:
BC
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: 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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