NSN 5306-01-520-8956
Close Tolerance Hex Head Bolt
0.675 inches fastener length, flat countersunk head style, between 0.455 inches and 0.510 inches head diameter, locking feature: pellet locking feature.
Manufacturer part number BACB30LR4-4 for national stock number 5306015208956.
Datasheet
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Product description
Close Tolerance Bolt NSN 5306-01-520-8956.
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MPN or Model
BACB30LR4-4
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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
0.425 inches -
Fastener Length
0.675 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.455 inches and 0.510 inches -
Locking Feature
Pellet locking feature -
Grip Diameter
Between 0.2481 inches and 0.2485 inches -
Shank Unthreaded Hole Diameter
0.076 inches -
Thread Diameter
0.250 inches -
Grip Length
0.250 inches -
Thready Qty Per Inch (tpi)
28 -
Countersink Angle
Between 99.0 degrees and 101.0 degrees -
Distance From Head Largest Bearing Surface To Shank Hole Center
2.6845 inches first hole -
Material
Stainless steel -
Material Specification
Ams5737 assn standard single material response -
Surface Treatment
Cadmium -
Surface Treatment Specification
Qq-p-416, type ii, 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 5306-01-520-8956 close tolerance boltManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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BACB30LR4-4 | The Boeing Company |