Close Tolerance Screw

Loading

  • Part Name
    CLOSE TOLERANCE SCREW
  • Federal Supply Class
    Screws
  • NIIN
    001646992
  • Part Number
    HT184-4-11, HT184-4-11, HT184-4-11, HT184-4-11
  • National Stock Number
    5305-00-164-6992
  • Item Name Code
    29294
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
    0.290 INCHES MINIMUM AND
  • 0.357 INCHES MAXIMUM
  • FASTENER LENGTH
    0.988 INCHES MINIMUM AND
  • 1.035 INCHES MAXIMUM
  • MATERIAL
    STEEL COMP 4140 OR
  • STEEL COMP E4340 OR
  • STEEL COMP 8740 OR
  • STEEL COMP 6150 OVERALL
  • SURFACE TREATMENT
    CADMIUM AND
  • CHROMATE OVERALL
  • SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
    QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • HARDNESS RATING
    40.0 ROCKWELL C MINIMUM AND
  • 43.0 ROCKWELL C MAXIMUM OVERALL
  • MINIMUM TENSILE STRENGTH
    180000 POUNDS PER SQUARE INCH
  • HEAD STYLE
    FLAT COUNTERSUNK
  • HEAD DIAMETER
    0.390 INCHES MINIMUM AND
  • 0.395 INCHES MAXIMUM
  • COUNTERSINK ANGLE
    100.0 DEGREES NOMINAL
  • INTERNAL DRIVE STYLE
    HIGH-TORQUE
  • GRIP LENGTH
    0.678 INCHES MINIMUM AND
  • 0.698 INCHES MAXIMUM
  • GRIP DIAMETER
    0.2485 INCHES MINIMUM AND
  • 0.2495 INCHES MAXIMUM
  • SURFACE FINISH
    32.0 MICROINCHES GRIP
  • 32.0 MICROINCHES THREADS
  • THE MANUFACTURERS DATA
  • MANUFACTURERS CODE
    73197
  • DESIGN CONTROL REFERENCE
    HT184-4-11
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.

Request Quote

Click the + sign at the end of the row to add another row/part