Close Tolerance Bolt

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  • Part Name
    CLOSE TOLERANCE BOLT
  • Federal Supply Class
    Bolts
  • NIIN
    013383348
  • Part Number
    50-12623-617, 510-12623-617
  • National Stock Number
    5306-01-338-3348
  • Item Name Code
    27851
Specifications
  • THREAD SERIES DESIGNATOR
    UNJF
  • NOMINAL THREAD DIAMETER
    0.562 INCHES
  • THREAD QUANTITY PER INCH
    18
  • THREAD CLASS
    3A
  • THREAD DIRECTION
    RIGHT-HAND
  • THREAD LENGTH
    0.605 INCHES NOMINAL
  • FASTENER LENGTH
    1.965 INCHES MINIMUM AND
  • 1.995 INCHES MAXIMUM
  • MATERIAL DOCUMENT AND CLASSIFICATION
    AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • SURFACE TREATMENT
    PASSIVATE OVERALL
  • SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
    QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • HEAD STYLE
    DOUBLE HEXAGON
  • HEAD HEIGHT
    0.318 INCHES MINIMUM AND
  • 0.338 INCHES MAXIMUM
  • WIDTH BETWEEN FLATS
    0.865 INCHES MINIMUM AND
  • 0.877 INCHES MAXIMUM
  • GRIP LENGTH
    1.365 INCHES MINIMUM AND
  • 1.385 INCHES MAXIMUM
  • GRIP DIAMETER
    0.5610 INCHES MINIMUM AND
  • 0.5615 INCHES MAXIMUM
  • SURFACE FINISH
    32.0 MICROINCHES BEARING SURFACE OF HEAD
  • 32.0 MICROINCHES GRIP
  • 32.0 MICROINCHES THREADS
  • SPECIAL FEATURES
    TAPPED HOLE IN HEAD O0.190-32 UNJF-3B THREADS DISTANCE FROM TOP OF HEAD TO INJECTION PORT 1.550 NOM. INCH. INJECTION PORT 0.160 NOM. IN. LG; 0.062 NOM. IN. WIDE
  • III PART NAME ASSIGNED BY CONTROLLING AGENCY
    NAVY SPECIAL PROJECT
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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