NSN 5306-01-525-5488
Close Tolerance Hex Head Bolt
Between 2.532 inches and 2.562 inches fastener length, dished hexagon head style, between 0.250 inches and 0.265 inches head height, width between flats: between 0.741 inches and 0.752 inches .
Manufacturer part number NAS6608-29 for national stock number 5306015255488.
Datasheet
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Product description
Close Tolerance Bolt NSN 5306-01-525-5488.
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MPN or Model
NAS6608-29
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Schedule B
7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment) -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
0.735 inches -
Fastener Length
Between 2.532 inches and 2.562 inches -
Head Style
Dished hexagon -
Head Height
Between 0.250 inches and 0.265 inches -
Width Between Flats
Between 0.741 inches and 0.752 inches -
Grip Diameter
Between 0.4945 inches and 0.4950 inches -
Thread Diameter
0.500 inches -
Grip Length
Between 1.802 inches and 1.822 inches -
Thready Qty Per Inch (tpi)
20 -
Material
Steel comp 4140 or steel comp 4340 or steel comp 8740 -
Material Specification
Ams6349 assn standard 1st material response or ams6382 assn standard 2nd material response or ams6322 assn standard 3rd material response or ams6415 assn standard 4th material response -
Surface Treatment
Cadmium -
Surface Treatment Specification
Qq-p-416, type 2, class 2 federal specification single treatment response -
Thread Series Designator
Unjf -
Specification Data
80205-nas6608 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.
![Mechanic Bill explains Close Tolerance Hex Head Bolt](/public/images/billy-thinking.png)
Pricing and Availability
Get a quote for 5306-01-525-5488 close tolerance boltManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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NAS6608-29 | National Aerospace Standards |
Stock Check
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