Model: NAS7403-11

Close Tolerance Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.318 inches and 0.328 inches
Fastener Length
Between 0.996 inches and 1.026 inches
Head Style
Flat countersunk
Head Diameter
Between 0.338 inches and 0.381 inches
Grip Diameter
Between 0.1885 inches and 0.1895 inches
Thread Diameter
0.190 inches
Grip Length
Between 0.678 inches and 0.698 inches
Thready Qty Per Inch (tpi)
32
Countersink Angle
Between 99.0 degrees and 101.0 degrees
Material
Steel comp 4340 or steel comp 8740
Material Specification
Mil-s-5000 military specification 1st material response or mil-s-6049 military specification 2nd material response or ams6322 assn standard 3rd material response
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, type 2 cl 2 federal specification single treatment response
Thread Series Designator
Unjf
NSN
5306-01-320-0454
Part Number
NAS7403-11
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 NAS7403-11 NSN 5306-01-320-0454

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:
U
ESD:
ESD:
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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