NSN 5306-00-281-1645
Close Tolerance Hex Head Bolt
2.279 inches fastener length, hexagon head style, between 0.172 inches and 0.204 inches head height, width between flats: between 0.490 inches and 0.502 inches .
Manufacturer part number AN175C21 for national stock number 5306002811645.
Datasheet
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Product description
Close Tolerance Bolt NSN 5306-00-281-1645.
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MPN or Model
AN175C21
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Schedule B
7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment) -
NMF (National Motor Freight)
093486 - Bolts, Nuts Or Screws, NOI (sub 3) -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
0.531 inches -
Fastener Length
2.279 inches -
Head Style
Hexagon -
Head Height
Between 0.172 inches and 0.204 inches -
Width Between Flats
Between 0.490 inches and 0.502 inches -
Grip Diameter
Between 0.3112 inches and 0.3117 inches -
Shank Unthreaded Hole Diameter
0.076 inches first hole -
Thread Diameter
0.312 inches -
Grip Length
1.688 inches -
Thready Qty Per Inch (tpi)
24 -
Min. Tensile Strength (psi)
125000 pounds per square inch -
Hardness Rating
26.0 rockwell c and 32.0 rockwell c -
Distance From Head Largest Bearing Surface To Shank Hole Center
2.047 inches first hole -
Surface Finish
63.0 microinches grip -
Material
Steel comp 431 -
Material Specification
Mil-s-18732 military specification single material response -
Surface Treatment
Passivate -
Thread Series Designator
Unf
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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 5306-00-281-1645 close tolerance boltManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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AN175C21 | Aeronautical Standards Group |
B6812 | Military Specifications |