BACB30LH4-2
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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.
0.514 inches nominal fastener length, 0.389 inches nominal thread length, right-hand thread direction, flat countersunk head style, 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
- 0.389 inches nominal
- Fastener Length
- 0.514 inches nominal
- Head Style
- flat countersunk
- Head Diameter
- 0.510 inches nominal
- Grip Diameter
- 0.2479 inches minimum and 1.2485 inches maximum
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.125 inches nominal
- Thread Quantity Per Inch
- 28
- Minimum Tensile Strength
- 95000 pounds per square inch
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Material
- plastic polyamide (nylon) locking feature
- Material
- steel corrosion resisting head
- Material Document And Classification
- ams5737 assn std single material response head
- Surface Treatment
- cadmium head
- Surface Treatment Document And Classification
- qq-p-416, type ii fed spec single treatment response head
- Thread Series Designator
- unjf
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 |
|---|---|
| BACB30LH4-2 | Shear Bolt |
FAQs
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What is the FSCG of the NSN 5306-01-520-8964?
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Does NSN 5306-01-520-8964 contain precious materials?
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When the NSN 5306-01-520-8964 was assigned to the Federal Catalog?
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