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  • Part Name
    MACHINE SCREW
  • Federal Supply Class
    Screws
  • NIIN
    001647096
  • Part Number
    MS27039DD4-22, MS27039DD4-22
  • National Stock Number
    5305-00-164-7096
  • Item Name Code
    6657
Specifications
  • THREAD SERIES DESIGNATOR
    UNF
  • NOMINAL THREAD DIAMETER
    0.250 INCHES
  • THREAD QUANTITY PER INCH
    28
  • THREAD CLASS
    3A
  • THREAD DIRECTION
    RIGHT-HAND
  • THREAD LENGTH
    0.501 INCHES MINIMUM AND
  • 0.578 INCHES MAXIMUM
  • FASTENER LENGTH
    1.391 INCHES MINIMUM AND
  • 1.438 INCHES MAXIMUM
  • SCREW MATERIAL
    ALUMINUM ALLOY 2024
  • SCREW MATERIAL DOCUMENT AND CLASSIFICATION
    QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE
  • SCREW SURFACE TREATMENT
    ANODIZE
  • SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
    MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE
  • MINIMUM TENSILE STRENGTH
    62000 POUNDS PER SQUARE INCH
  • HEAD STYLE
    PAN
  • HEAD DIAMETER
    0.473 INCHES MINIMUM AND
  • 0.492 INCHES MAXIMUM
  • HEAD HEIGHT
    0.162 INCHES MINIMUM AND
  • 0.175 INCHES MAXIMUM
  • INTERNAL DRIVE STYLE
    CROSS RECESS TYPE 1
Restrictions
  • Demilitarization Code
    A

    Items subject to the Export Administration Regulations (EAR) in parts 773-74 of Title 15, Code of Federal Regulations (CFR) (CCLI or EAR99) and determined by the DoD to present a low risk when released out of DoD control. No DEMIL, MUT or end use certificate is required. May require an export license from DOC.

  • Criticality Code
    X

    Does not have a nuclear hardened feature or other critical feature such as tolerance, fit restriction or application.

  • Hazardous Material Code
    N

    There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

  • Precious Metals Code (PMIC)
    U

    Precious Metal type is unknown.

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