Pipe To Tube Union

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  • Part Name
    PIPE TO TUBE UNION
  • Federal Supply Class
    Hose, Pipe, Tube, Lubrication, And Railing Fittings
  • NIIN
    010914359
  • Part Number
    2621-021-01ASSY63, 2621-021-01ASSY63, 4643893-OF12
  • National Stock Number
    4730-01-091-4359
  • Item Name Code
    3787
Specifications
  • MATERIAL
    NICKEL ALLOY BODY
  • NICKEL ALLOY NUT
  • STEEL COMP 304 SLEEVE
  • MATERIAL DOCUMENT AND CLASSIFICATION
    QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE BODY
  • QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE NUT
  • QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE TAILPIECE
  • MAXIMUM OPERATING PRESSURE
    4500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
  • STYLE DESIGNATOR
    SCREWED
  • CONNECTION TYPE
    THREADED EXTERNAL TUBE 1ST END
  • THREADED EXTERNAL PIPE 2ND END
  • CONNECTION STYLE
    GASKET SEAL (TUBE) 1ST END
  • NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED
    0.500 INCHES 1ST END
  • THREAD SERIES DESIGNATOR
    UNF 1ST END
  • NPT 2ND END
  • NOMINAL THREAD SIZE
    0.750 INCHES 1ST END
  • 0.250 INCHES 2ND END
  • THREAD CLASS
    2A 1ST END
  • NOMINAL OVERALL LENGTH
    4.750 INCHES
  • SEAT TYPE
    RECESSED
  • COUPLING FLANGE SHAPE
    HEXAGON
  • REDUCER TYPE
    CONCENTRIC
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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