PBF1478-5H12
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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.
right-hand thread direction, 0.480 inches nominal thread length, 1.215 inches minimum and 1.245 inches maximum fastener length, double hexagon w/hole 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
- 0.480 inches nominal
- Fastener Length
- 1.215 inches minimum and 1.245 inches maximum
- Head Style
- double hexagon w/hole
- Head Height
- 0.338 inches minimum and 0.358 inches maximum
- Width Between Flats
- 0.367 inches minimum and 0.376 inches maximum
- Extended Washer Diameter
- 0.521 inches minimum and 0.531 inches maximum
- Extended Washer Thickness
- 0.082 inches nominal
- Hole Diameter
- 0.050 inches minimum and 0.060 inches maximum
- Grip Diameter
- 0.3115 inches minimum and 0.3120 inches maximum
- Nominal Thread Diameter
- 0.312 inches
- Grip Length
- 0.740 inches minimum and 0.760 inches maximum
- Hole Quantity
- 4
- Hole Type
- drilled
- Thread Quantity Per Inch
- 24
- Minimum Tensile Strength
- 132000 pounds per square inch
- Hole Configuration Style
- double hexagon longitudinal hole
- Part Name Assigned By Controlling Agency
- navy special project
- Material Document And Classification
- ams 5662 assn std single material response overall
- Surface Treatment
- passivate overall
- Surface Treatment Document And Classification
- qq-p-35 fed spec single treatment response overall
- 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 |
|---|---|
| GB511GF5H12 | Close Tolerance Bolt |
| PBF1478-5H12 | Close Tolerance Bolt |
| VCC0090-5H12 | Close Tolerance Bolt |
FAQs
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What is the FSCG of the NSN 5306-01-361-7053?
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Does NSN 5306-01-361-7053 contain precious materials?
Does NSN 5306-01-361-7053 contain hazardous materials?
When the NSN 5306-01-361-7053 was assigned to the Federal Catalog?
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