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  • Part Name
    CLOSE TOLERANCE SCREW
  • Federal Supply Class
    Screws
  • NIIN
    013382833
  • Part Number
    HT357E4-11, HT357E4-11
  • National Stock Number
    5305-01-338-2833
  • Item Name Code
    29294
Specifications
  • THREAD SERIES DESIGNATOR
    UNJF
  • NOMINAL THREAD DIAMETER
    0.250 INCHES
  • THREAD QUANTITY PER INCH
    28
  • THREAD CLASS
    3A
  • THREAD DIRECTION
    RIGHT-HAND
  • THREAD LENGTH
    0.403 INCHES NOMINAL
  • FASTENER LENGTH
    1.075 INCHES MINIMUM AND
  • 1.122 INCHES MAXIMUM
  • MATERIAL
    RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR RING
  • NICKEL ALLOY 718 FASTENER
  • MATERIAL DOCUMENT AND CLASSIFICATION
    AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
  • SURFACE TREATMENT
    PASSIVATE FASTENER
  • HEAD STYLE
    FLAT COUNTERSUNK UNDERCUT
  • HEAD DIAMETER
    0.475 INCHES MINIMUM AND
  • 0.507 INCHES MAXIMUM
  • HEAD HEIGHT
    0.071 INCHES MINIMUM AND
  • 0.073 INCHES MAXIMUM
  • COUNTERSINK ANGLE
    99.0 DEGREES MINIMUM AND
  • 101.0 DEGREES MAXIMUM
  • INTERNAL DRIVE STYLE
    HIGH-TORQUE
  • GRIP LENGTH
    0.678 INCHES MINIMUM AND
  • 0.698 INCHES MAXIMUM
  • GRIP DIAMETER
    0.2490 INCHES MINIMUM AND
  • 0.2495 INCHES MAXIMUM
  • SURFACE FINISH
    32.0 MICROINCHES BEARING SURFACE OF HEAD
  • 32.0 MICROINCHES GRIP
  • 32.0 MICROINCHES THREADS
  • FEATURES PROVIDED
    O RING
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)
    A

    Item does not contain Precious Metal.

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