BACB30NM-6K8
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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.
0.325 inches nominal thread length, right-hand thread direction, flat countersunk undercut head style, 0.490 inches minimum and 0.510 inches maximum fastener length, 3a thread class
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Thread Class
- 3a
- Thread Direction
- right-hand
- Thread Length
- 0.325 inches nominal
- Fastener Length
- 0.490 inches minimum and 0.510 inches maximum
- Head Style
- flat countersunk undercut
- Head Diameter
- 0.270 inches minimum
- Head Height
- 0.048 inches maximum
- Grip Diameter
- 0.1881 inches minimum and 0.1895 inches maximum
- Nominal Thread Diameter
- 0.190 inches
- Grip Length
- 0.112 inches nominal
- Thread Quantity Per Inch
- 32
- Minimum Tensile Strength
- 95000 pounds per square inch
- Countersink Angle
- 100.0 degrees nominal
- Part Name Assigned By Controlling Agency
- bolt, shear head
- Special Features
- cetyl alcohol lubrication
- Material
- titanium overall
- Surface Treatment
- aluminum overall
- Thread Series Designator
- unf
Related Parts
This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:
| Part Number | Name |
|---|---|
| BACB30NM-6K8 | Shear Bolt |
| BACB30NW6K8 | Shear Bolt |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5306-01-520-7491?
Does the NSN 5306-01-520-7491 have a Schedule B code assigned?
Does NSN 5306-01-520-7491 require demilitarization?
Does NSN 5306-01-520-7491 contain precious materials?
Does NSN 5306-01-520-7491 contain hazardous materials?
When the NSN 5306-01-520-7491 was assigned to the Federal Catalog?
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