NSN 5306-01-131-2925
Close Tolerance Hex Head Bolt
Between 3.746 inches and 3.776 inches fastener length, hexagon head style, between 0.281 inches and 0.296 inches head height, width between flats: between 0.865 inches and 0.877 inches .
Manufacturer part number NAS1261-52D for national stock number 5306011312925.
Datasheet
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Product description
Close Tolerance Bolt NSN 5306-01-131-2925.
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MPN or Model
NAS1261-52D
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Schedule B
8109.90.0000 (Zirconium and articles thereof nesoi) -
NMF (National Motor Freight)
136500 - Metal NOI/metal Alloys NOI -
Unit Weight (Est.)
0.1 lb -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
Between 0.486 inches and 0.536 inches -
Fastener Length
Between 3.746 inches and 3.776 inches -
Head Style
Hexagon -
Head Height
Between 0.281 inches and 0.296 inches -
Width Between Flats
Between 0.865 inches and 0.877 inches -
Grip Diameter
Between 0.5610 inches and 0.5615 inches -
Shank Unthreaded Hole Diameter
0.141 inches first hole and 0.151 inches first hole -
Thread Diameter
0.562 inches -
Grip Length
Between 3.240 inches and 3.260 inches -
Thready Qty Per Inch (tpi)
18 -
Distance From Head Largest Bearing Surface To Shank Hole Center
3.612 inches first hole and 3.662 inches first hole -
Surface Finish
63.0 microinches grip -
Material
Titanium alloy -
Material Specification
Nas 621 assn standard single material response -
Thread Series Designator
Unjf -
Specification Data
80205-nas1261 professional/industrial association standard
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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.
Pricing and Availability
Get a quote for 5306-01-131-2925 close tolerance boltManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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NAS1261-52D | National Aerospace Standards |