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NSN 5305-01-368-5646

Panel Assembly Fastener

About this product

0.280 inches fastener length, square head style, 0.090 inches head height, width between flats: 0.280 inches .

Manufacturer part number 1974AS178-001 for national stock number 5305013685646.

Datasheet

  • Product description

    Shoulder Screw NSN 5305-01-368-5646.

  • MPN or Model

    1974AS178-001

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    096640 - Screws, Iron Or Steel
  • Thread Class
    2a
  • Thread Direction
    Right-hand
  • Thread Length
    0.145 inches
  • Fastener Length
    0.280 inches
  • Head Style
    Square
  • Head Height
    0.090 inches
  • Width Between Flats
    0.280 inches
  • Shoulder Length
    0.075 inches all shoulders
  • Shoulder Width Across Flats
    0.020 inches all shoulders
  • Internal Drive Style
    Cross recess type 1
  • Thread Diameter
    0.086 inches
  • Thready Qty Per Inch (tpi)
    56
  • Shoulder Shape
    Square all shoulders
  • Part Name Assigned By Controlling Agency
    Navy special project
  • Material
    Steel
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Qq-p-35 federal specification 1st treatment response
  • Thread Series Designator
    Unc
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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 5305013685646

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
1974AS178-001 Naval Air Systems Command
1974AS178-001 Naval Air Systems Command
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