3M1043-5-20-85
View detailed technical data, stock status, and sourcing information for: 3M1043-5-20-85
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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.
3a thread class, 1.786 inches minimum and 1.816 inches maximum fastener length, right-hand thread direction, 0.526 inches minimum and 0.576 inches maximum thread length, 32 concentric hole threads per inch
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Threads Per Inch
- 32 concentric hole
- Thread Class
- 3a
- Thread Direction
- right-hand
- Thread Length
- 0.526 inches minimum and 0.576 inches maximum
- Fastener Length
- 1.786 inches minimum and 1.816 inches maximum
- Head Style
- spline extended washer
- Head Height
- 0.247 inches minimum and 0.287 inches maximum
- Extended Washer Diameter
- 0.575 inches minimum and 0.585 inches maximum
- Extended Washer Thickness
- 0.035 inches minimum and 0.055 inches maximum
- Head Minor Diameter
- 0.360 inches minimum and 0.375 inches maximum
- Internal Thread Length
- 0.300 inches minimum and 0.345 inches maximum concentric hole
- Nominal Thread Diameter
- 0.312 inches
- Thread Series
- unjc concentric hole
- Internal Thread Direction
- right-hand concentric hole
- Thread Quantity Per Inch
- 24
- Minimum Tensile Strength
- 220000 pounds per square inch
- Nominal Thread Size
- 0.138 inches concentric hole
- Internal Thread Class
- 3b concentric hole
- Part Name Assigned By Controlling Agency
- navy special project
- Special Features
- injection port 0.120 in. lg,0.060 in. wide in unthd shank; distance from head to beginning of injection port 0.850 in.
- Material Document And Classification
- ams5629 assn std single material response overall
- Surface Treatment
- passivate overall
- Surface Treatment Document And Classification
- qq-p-35 fed spec single treatment response overall
- Style Designator
- concentric hole threaded
- 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 |
|---|---|
| 11841-5-20-85 | Internally Relieved Body Bolt |
| 3M1043-5-20-85 | Internally Relieved Body Bolt |
FAQs
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What is the FSCG of the NSN 5306-01-304-7960?
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Does NSN 5306-01-304-7960 contain hazardous materials?
When the NSN 5306-01-304-7960 was assigned to the Federal Catalog?
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