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NSN 5305-00-253-5621

Drive Screw

About this product

0.500 inches fastener length, round head style, between 0.240 inches and 0.260 inches head diameter, head height: between 0.091 inches and 0.103 inches .

Manufacturer part number MS21318-30 for national stock number 5305002535621.

Datasheet

  • Product description

    Drive Screw NSN 5305-00-253-5621.

  • MPN or Model

    MS21318-30

  • 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.)
    0.4 lb
  • Fastener Length
    0.500 inches
  • Head Style
    Round
  • Head Diameter
    Between 0.240 inches and 0.260 inches
  • Head Height
    Between 0.091 inches and 0.103 inches
  • Pilot Diameter
    Between 0.112 inches and 0.116 inches
  • Pilot Length
    0.062 inches
  • Features Provided
    Casehardened
  • Nonmachine Thread Style
    Drive screw (type u)
  • Nonmachine Thread Diameter
    0.138 inches
  • Material
    Steel
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Qq-p-416 type 2 cl 3 federal specification all treatment responses
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Drive Screw

A hardened cylindrical fastener with multiple spiral flutes on its shank. It also has an end smaller in diameter than the outside diameter of the spiral flutes, which acts as a pilot when driven into a drilled hole.

Mechanic Bill explains Drive Screw

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NSN 5305002535621

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
MS21318-30 National Aerospace Standards
MS21318-30A Military Standards
MS21318-30 Military Standards
AN535C6-6 Aeronautical Standards Group
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