NSN 5306-00-300-2680
Close Tolerance Hex Head Bolt
3.238 inches fastener length, hexagon countersunk undercut head style, between 0.310 inches and 0.311 inches bottom countersink diameter, head height: between 0.157 inches and 0.172 inches .
Manufacturer part number MS27576-5-44 for national stock number 5306003002680.
Datasheet
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Product description
Close Tolerance Bolt NSN 5306-00-300-2680.
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MPN or Model
MS27576-5-44
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NMF (National Motor Freight)
093486 - Bolts, Nuts Or Screws, NOI (sub 3) -
Unit Weight (Est.)
0.1 lb -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
Between 0.472 inches and 0.488 inches -
Fastener Length
3.238 inches -
Head Style
Hexagon countersunk undercut -
Bottom Countersink Diameter
Between 0.310 inches and 0.311 inches -
Head Height
Between 0.157 inches and 0.172 inches -
Width Between Flats
Between 0.492 inches and 0.502 inches -
Thread Diameter
0.312 inches -
Grip Length
Between 2.750 inches and 2.766 inches -
Thready Qty Per Inch (tpi)
24 -
Hardness Rating
36.0 rockwell c and 41.0 rockwell c -
Countersink Angle
Between 0.005 radians and 0.015 radians -
Surface Finish
63.0 microinches bearing surface of head63.0 microinches grip -
Surface Treatment
Cadmium and chromate -
Surface Treatment Specification
Qq-p-416, type 2, class 2 federal specification single treatment response -
Thread Series Designator
Unjf
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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 5306-00-300-2680 close tolerance boltManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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MS27576-5-44 | National Aerospace Standards |
MS27576-5-44 | Military Standards |