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NSN 5305-00-042-0989

Truss Head Slotted Machine Screw And Spring Lock Washer Assemblies

About this product

Between 0.344 inches and 0.375 inches fastener length, round head style, between 0.443 inches and 0.472 inches head diameter, head height: between 0.160 inches and 0.175 inches .

Manufacturer part number 420989 for national stock number 5305000420989.

Datasheet

  • Product description

    Assembled Washer Screw NSN 5305-00-042-0989.

  • MPN or Model

    420989

  • 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
    2a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.244 inches and 0.344 inches
  • Fastener Length
    Between 0.344 inches and 0.375 inches
  • Head Style
    Round
  • Head Diameter
    Between 0.443 inches and 0.472 inches
  • Head Height
    Between 0.160 inches and 0.175 inches
  • Washer Quantity
    1
  • Internal Drive Style
    Slot
  • Thread Diameter
    0.250 inches
  • Thready Qty Per Inch (tpi)
    20
  • Primary Washer Outside Diameter
    Between 0.460 inches and 0.475 inches
  • Primary Washer Style
    Flat external teeth
  • Primary Washer Material Thickness
    Between 0.023 inches and 0.028 inches
  • Material
    Steel
  • Material Specification
    66 federal standard all material responses
  • Surface Treatment
    Cadmium or zinc
  • Surface Treatment Specification
    Qq-p-416, type 1, cl 3 federal specification 1st treatment response or qq-z-325, type 1, cl 3 federal specification 2nd treatment response
  • Thread Series Designator
    Unc
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Assembled Washer Screw

A screw, (as modified) to which has been assembled one or more nonremovable washer(s).

Mechanic Bill explains Truss Head Slotted Machine Screw And Spring Lock Washer Assemblies

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NSN 5305000420989

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
420989 Army Weapons Command
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