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NSN 5305-01-386-5277

Panel Assembly Fastener

About this product

This item is flight safety critical. Thread is safety critical per mil-s-7742 under application category safety critical. Apply one coat of mil-p-23377, ty 1, cl 1 or 3 and two top coats of mil-c-46168, color code 33538 per fed-std-595 to top of head. Threads and shoulder are undercut for relief..

Manufacturer part number 02270-2 for national stock number 5305013865277.

Datasheet

  • Product description

    Shoulder Screw NSN 5305-01-386-5277.

  • MPN or Model

    02270-2

  • 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
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.605 inches
  • Fastener Length
    2.485 inches
  • Head Style
    Flat chamfer
  • Head Diameter
    Between 0.853 inches and 0.875 inches
  • Head Height
    Between 0.365 inches and 0.375 inches
  • Shoulder Diameter
    0.621 inches first shoulder and 0.623 inches first shoulder
  • Shoulder Length
    1.652 inches first shoulder
  • Internal Drive Style
    Hexagon
  • Thread Diameter
    0.500 inches
  • Width Across Flats
    0.312 inches
  • Thready Qty Per Inch (tpi)
    13
  • Min. Tensile Strength (psi)
    140000 pounds per square inch
  • Criticality Code Justification
    Feat
  • Shoulder Shape
    Round first shoulder
  • Material
    Steel uns k03104
  • Material Specification
    Astm a574 assn standard single material response
  • Surface Treatment
    Cadmium and chromate
  • Surface Treatment Specification
    Qq-p-416 type 2 cl 3 federal specification all treatment responses
  • 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 5305013865277

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
02270-2 Defense Logistics Agency
02270-2 Defense Logistics Agency
02270-2 Defense Logistics Agency
02270-2 Defense Logistics Agency
02270-2 Defense Logistics Agency
02270-2 Defense Logistics Agency
02270-2 Defense Logistics Agency
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