Browse Standards J2271_200905
Current REVISED 2009-05-04

Ship Systems and Equipment—Part Standard for Studs—Continuous and Double End (Inch Series) J2271_200905

This SAE Parts Standard provides dimensional and quality assurance requirements for studs in the following configurations in standard materials used for ship system applications:
  1. a
    Continuous thread studs in UNRC and 8UNR series in the following threads and diameters:
    • UNRC threads (1/4 through 4 inches)
    • UNRF threads (1/4 through 1-1/2 inches)
    • 8UNR threads (1-1/8 through 4 inches)
  2. b
    Double end studs (clamping type) where both ends are of the same minimum thread length in the following threads and diameters:
    • UNRC threads (1/4 through 4 inches)
    • UNRF threads (1/4 through 1-1/2 inches)
    • 8UNR threads (1-1/8 through 4 inches)
  3. Different thread forms on each end are permissible.
  4. c
    Double end studs (tap end type) where the tap end thread length is equivalent to 1-1/2 nominal diameters:
    Tap End Thread Forms and Diameters Nut End Thread Forms and Diameters
    • NC-5 interference-fit tap end threads (1/4 through 1-1/2 inches)
    • UNRC threads (1/4 through 4 inches)
    • UNRC threads (1/4 through 4 inches)
    • UNRF threads (1/4 through 1-1/2 inches)
    • UNRF threads (1/4 through 1-1/2 inches)
    • 8UNR threads (1-1/8 through 4 inches)
    • 8UNR threads (1-1/8 through 4 Inches)
J2271_200905
2009-05-04
Latest
Revised
J2271_200901
2009-01-23
Historical
Revised
J2271_200406
2004-06-21
Historical
Reaffirmed
J2271_199606
1996-06-01
Historical
Issued

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