NSN 5306-01-191-7256
Close Tolerance Hex Head Bolt
Between 0.948 inches and 0.968 inches fastener length, double hexagon extended washer head style, between 0.293 inches and 0.313 inches head height, width between flats: 0.312 inches .
Manufacturer part number J814P021A for national stock number 5306011917256.
Datasheet
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Product description
Close Tolerance Bolt NSN 5306-01-191-7256.
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MPN or Model
J814P021A
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Schedule B
7508.90.0000 (Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire)) -
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 0.505 inches and 0.535 inches -
Fastener Length
Between 0.948 inches and 0.968 inches -
Head Style
Double hexagon extended washer -
Head Height
Between 0.293 inches and 0.313 inches -
Width Between Flats
0.312 inches -
Extended Washer Diameter
Between 0.428 inches and 0.448 inches -
Extended Washer Thickness
Between 0.060 inches and 0.070 inches -
Grip Diameter
Between 0.2490 inches and 0.2495 inches -
Thread Diameter
0.250 inches -
Grip Length
Between 0.433 inches and 0.443 inches -
Thready Qty Per Inch (tpi)
28 -
Surface Finish
32.0 microinches threads -
Material
Nickel alloy 718 -
Material Specification
C50tf13 cl-b, fscm 07482 mfr ref single material 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 5306-01-191-7256 close tolerance boltManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
J814P021A | General Electric Company |
J814P021A | Cfm International, Inc. |
J8 4P021A | Cfm International, Inc. |