ADB-31166
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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.
0.510 inches nominal fastener length, 3a thread class, right-hand thread direction, flat chamfer head style, 0.250 inches nominal thread length
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
- 0.250 inches nominal
- Fastener Length
- 0.510 inches nominal
- Head Style
- flat chamfer
- Head Diameter
- 0.500 inches nominal
- Head Height
- 0.125 inches nominal
- Shoulder Diameter
- 0.248 inches minimum and 0.249 inches maximum first shoulder
- Shoulder Length
- 0.255 inches minimum and 0.260 inches maximum first shoulder
- Internal Drive Style
- slot
- Nominal Thread Diameter
- 0.190 inches
- Thread Quantity Per Inch
- 32
- Shoulder Shape
- round first shoulder
- Material
- steel overall
- Surface Treatment
- oxide overall
- Thread Series Designator
- unf
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FAQs
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What is the FSCG of the NSN 5305-01-115-2514?
Does the NSN 5305-01-115-2514 have a Schedule B code assigned?
Does NSN 5305-01-115-2514 require demilitarization?
Does NSN 5305-01-115-2514 contain precious materials?
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When the NSN 5305-01-115-2514 was assigned to the Federal Catalog?
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