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GG-T-671/5 Revision B, March 10, 1981
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TRIANGLE, DRAFTING, STEEL, BEAD SUPPORTS AND LIFTING KNOB
Includes all amendments and changes through Cancellation Notice 1, May 4, 2000
Additional Comments: CNCL NO S/S
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This specification sheet covers the specific requirements for Type V steel triangles with bead supports and a lifting knob.

The triangles covered by this specification shall have a definitive Federal specification part number and shall be designated in the following form (see 6.2 and 6.3). ILLUSTRATION

The class of triangles is identified by a single letter (see Table I). Table I. Class code letter
Code                              Class
              ------------------------------------------------

                     A                                  A
                     B                                  B

  Class A - 30 degrees - 60 degrees (6-inch side opposite the 60
                         degree angle).
  Class B - 45 degrees - (6-inch sides opposite the 45 degree angles).