1-321-802-5889

NSN 5305-01-548-7908

Button Head Socket Screw

About this product

0.500 inches fastener length, flat countersunk head style, 0.250 inches thread diameter, thready qty per inch (tpi): 28.

Manufacturer part number 0.250-28UNF-2A X 0.500 for national stock number 5305015487908.

Datasheet

  • Product description

    Socket Head Cap Screw NSN 5305-01-548-7908.

  • MPN or Model

    0.250-28UNF-2A X 0.500

  • Schedule B
    7415.33.8550 (Other copper screws (not for wood) bolts and nuts)
  • NMF (National Motor Freight)
    096640 - Screws, Iron Or Steel
  • Thread Class
    2a
  • Thread Direction
    Right-hand
  • Fastener Length
    0.500 inches
  • Head Style
    Flat countersunk
  • Thread Diameter
    0.250 inches
  • Thready Qty Per Inch (tpi)
    28
  • Countersink Angle
    82.0 degrees
  • Material
    Copper alloy
  • Material Specification
    Qq-n-281, class a federal specification single material response
  • Thread Series Designator
    Unf
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Socket Head Cap Screw

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Mechanic Bill explains Button Head Socket Screw

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NSN 5305015487908

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
0.250-28UNF-2A X 0.500 American National Standards
FF-S-86 TYPE IV Federal Specifications
7094234-4 Naval Sea Systems Command
4491143-65 Naval Ship Engineering Center
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