Model: BACB30NF5-32X

Close Tolerance Bolt

Special Features:

0.0156 oversize, restricted usage : repair only.

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.4543 inches
Fastener Length
Between 1.814 inches and 1.844 inches
Head Style
Undercut hexagon
Head Height
Between 0.156 inches and 0.171 inches
Width Between Flats
Between 0.492 inches and 0.502 inches
Grip Diameter
Between 0.3260 inches and 0.3266 inches
End Application
Joint stars
Thread Diameter
0.312 inches
Grip Length
2.000 inches
Thready Qty Per Inch (tpi)
24
Surface Finish
32.0 microinches bearing surface of head
Surface Finish
32.0 microinches grip
Surface Finish
32.0 microinches threads
Part Name Assigned By Controlling Agency
Bolt, close tolerance
Material
Iron alloy 660
Material Specification
Ams5737 assn standard single material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, ty2, cl2 federal specification single treatment response
Thread Series Designator
Unjf
NSN
5306-01-539-1397
Part Number
BACB30NF5-32X
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 BACB30NF5-32X NSN 5306-01-539-1397

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:
WH
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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