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NSN 5305-01-391-4401

Adjusting Screw

About this product

0.906 inches fastener length, knurled no. 4 head style, 0.500 inches head diameter, head height: 0.125 inches .

Manufacturer part number 1680-ALSE-277-1 for national stock number 5305013914401.

Datasheet

  • Product description

    Thumbscrew NSN 5305-01-391-4401.

  • MPN or Model

    1680-ALSE-277-1

  • 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
    0.281 inches
  • Fastener Length
    0.906 inches
  • Head Style
    Knurled no. 4
  • Head Diameter
    0.500 inches
  • Head Height
    0.125 inches
  • End Application
    Hgu-56/p aircrew integrated helmet, all sizes
  • Thread Diameter
    0.106 inches
  • Thready Qty Per Inch (tpi)
    40
  • Material
    Stainless steel
  • Material Specification
    Qq-s-763, cl 430, cond a federal specification single material response
  • Surface Treatment
    Passivate and oxide
  • Surface Treatment Specification
    Qq-p-35 ty vi, vii, viii federal specification 1st treatment response and mil-c-13924 military specification 2nd treatment response
  • Thread Series Designator
    Unc
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Thumbscrew

An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).

Mechanic Bill explains Adjusting Screw

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NSN 5305013914401

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
1680-ALSE-277-1 U S Army Aviation And Missile
92B8464 Gentex Corporation
1680-ALSE-277-1 U S Army Aviation And Missile
92B8464 Gentex Corporation
1680-ALSE-277-1 U S Army Aviation And Missile
92B8464 Gentex Corporation
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