A111-12E
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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, hexagon head style, 0.499 inches minimum and 0.640 inches maximum thread length, 1.800 inches minimum and 1.840 inches maximum fastener length, 2a 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
- 2a
- Thread Direction
- right-hand
- Thread Length
- 0.499 inches minimum and 0.640 inches maximum
- Fastener Length
- 1.800 inches minimum and 1.840 inches maximum
- Head Style
- hexagon
- Head Height
- 0.140 inches minimum and 0.150 inches maximum
- Width Between Flats
- 0.431 inches minimum and 0.438 inches maximum
- Grip Diameter
- 0.2493 inches minimum and 0.2498 inches maximum
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 1.200 inches minimum and 1.301 inches maximum
- Thread Quantity Per Inch
- 28
- Special Features
- identification disk on top of head 0.430 in. dia,0.030 in. depth
- Material
- steel overall
- Material Document And Classification
- a.111,fscm k7766 national spec single material response overall
- Surface Treatment
- cadmium 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 |
|---|---|
| 99-9415873 | Close Tolerance Bolt |
| A111-12E | Close Tolerance Bolt |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5306-00-469-1963?
Does the NSN 5306-00-469-1963 have a Schedule B code assigned?
Does NSN 5306-00-469-1963 require demilitarization?
Does NSN 5306-00-469-1963 contain precious materials?
Does NSN 5306-00-469-1963 contain hazardous materials?
When the NSN 5306-00-469-1963 was assigned to the Federal Catalog?
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