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NSN 5305-01-374-3278

Button Head Socket Screw

About this product

1.250 inches fastener length, flat countersunk head style, between 0.720 inches and 0.781 inches head diameter, spline minor diameter: between 0.212 inches and 0.214 inches .

Manufacturer part number FF-S-86 for national stock number 5305013743278.

Datasheet

  • Product description

    Socket Head Cap Screw NSN 5305-01-374-3278.

  • MPN or Model

    FF-S-86

  • 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)
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.905 inches and 1.016 inches
  • Fastener Length
    1.250 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.720 inches and 0.781 inches
  • Spline Minor Diameter
    Between 0.212 inches and 0.214 inches
  • Spline Major Diameter
    Between 0.249 inches and 0.251 inches
  • Spline Width
    Between 0.064 inches and 0.065 inches
  • Locking Feature
    Patch threads or pellet threads or strip threads
  • Internal Drive Style
    Six spline
  • Thread Diameter
    0.375 inches
  • Thready Qty Per Inch (tpi)
    18
  • Hardness Rating
    42.0 rockwell c fastener
  • Countersink Angle
    Between 80.0 degrees and 84.0 degrees
  • Material
    Plastic polyamide locking featuresteel fastener
  • Thread Series Designator
    Unc
  • Nondefinitive Specification/std Data
    5 type
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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 5305013743278

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
FF-S-86 Federal Specifications
704-5768570 ITEM 58 TYPE VI Naval Sea Systems Command
60-16-9622 Electric Boat Corporation
5768570 ITEM 58 Naval Sea Systems Command
Stock Check
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