NSN 5305-00-054-5678
High Torque Screw
Between 0.863 inches and 0.893 inches fastener length, flat countersunk head style, between 0.362 inches and 0.395 inches head diameter, grip diameter: between 0.2485 inches and 0.2495 inches .
Manufacturer part number 7S37-4A9 for national stock number 5305000545678.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-00-054-5678.
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MPN or Model
7S37-4A9
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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
Between 0.291 inches and 0.341 inches -
Fastener Length
Between 0.863 inches and 0.893 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.362 inches and 0.395 inches -
Grip Diameter
Between 0.2485 inches and 0.2495 inches -
Internal Drive Style
Offset cruciform (torque set) -
Thread Diameter
0.250 inches -
Grip Length
Between 0.552 inches and 0.572 inches -
Thready Qty Per Inch (tpi)
28 -
Min. Tensile Strength (psi)
160000 pounds per square inch -
Countersink Angle
100.0 degrees -
Material
Steel comp 4130 -
Material Specification
Mil-s-6758, cond d4 military specification single material response -
Surface Treatment
Cadmium and chromate -
Thread Series Designator
Unf
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A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (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 designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.
Pricing and Availability
Get a quote for 5305-00-054-5678 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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7S37-4A9 | Boeing Company, The |