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NSN 5305-01-198-6450

Panel Assembly Fastener

About this product

0.329 inches fastener length, hexagon head style, 0.140 inches head height, width between flats: 0.312 inches .

Manufacturer part number 20406-A for national stock number 5305011986450.

Datasheet

  • Product description

    Shoulder Screw NSN 5305-01-198-6450.

  • MPN or Model

    20406-A

  • Schedule B
    7415.33.8550 (Other copper screws (not for wood) bolts and nuts)
  • NMF (National Motor Freight)
    096630 - Screws NOI Brass/bronze/copper
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    2a
  • Thread Direction
    Right-hand
  • Thread Length
    0.188 inches
  • Fastener Length
    0.329 inches
  • Head Style
    Hexagon
  • Head Height
    0.140 inches
  • Width Between Flats
    0.312 inches
  • Shoulder Diameter
    0.180 inches first shoulder
  • Shoulder Length
    0.141 inches first shoulder and 0.157 inches first shoulder
  • Internal Drive Style
    W/o internal drive
  • Thread Diameter
    0.125 inches
  • Thready Qty Per Inch (tpi)
    40
  • Criticality Code Justification
    Zzzy
  • Shoulder Shape
    Round first shoulder
  • Material
    Copper alloy 464
  • Material Specification
    Qq-b-637, alloy 464, half hard federal specification single material response
  • Thread Series Designator
    Unc
  • Reference Number Differentiating Characteristics
    Material will be in accordance with ships parts control center activity hx quality control, manufacturing and testing specifications
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Shoulder Screw

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. No. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use screw, externally relieved body. For items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. Excludes bolt, internal wrenching and screw, cap, socket head.

Mechanic Bill explains Panel Assembly Fastener

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NSN 5305011986450

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
20406-A Atwood & Morrill Co. Inc.
5330-F PC37 Atwood & Morrill Co. Inc.
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