Machine Screw

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  • Part Name
    MACHINE SCREW
  • Federal Supply Class
    Screws
  • NIIN
    001646935
  • Part Number
    NAS1623E44
  • National Stock Number
    5305-00-164-6935
  • Item Name Code
    6657
Specifications
  • THREAD SERIES DESIGNATOR
    UNJF
  • NOMINAL THREAD DIAMETER
    0.190 INCHES
  • THREAD QUANTITY PER INCH
    32
  • THREAD CLASS
    3A
  • THREAD DIRECTION
    RIGHT-HAND
  • THREAD LENGTH
    0.251 INCHES MINIMUM AND
  • 0.301 INCHES MAXIMUM
  • FASTENER LENGTH
    3.011 INCHES MINIMUM AND
  • 3.041 INCHES MAXIMUM
  • SCREW MATERIAL
    IRON ALLOY 660
  • SCREW MATERIAL DOCUMENT AND CLASSIFICATION
    AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE
  • SCREW SURFACE TREATMENT
    PASSIVATE
  • SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
    QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
  • MINIMUM TENSILE STRENGTH
    160000 POUNDS PER SQUARE INCH
  • HEAD STYLE
    FLAT COUNTERSUNK
  • HEAD DIAMETER
    0.322 INCHES MINIMUM AND
  • 0.387 INCHES MAXIMUM
  • COUNTERSINK ANGLE
    99.0 DEGREES MINIMUM AND
  • 101.0 DEGREES MAXIMUM
  • INTERNAL DRIVE STYLE
    TORQUE SET
  • SPECIFICATION/STANDARD DATA
    80205-NAS1623 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
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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