Sunday, 1 November 2026
Standing Office 81 (SOVNPA 81) emblem Viet Nam NVietnam National Presiding Agency
on Countering the Proliferation of Weapons of Mass Destruction
Standing Office 81

3.B.2.Rotor fabrication or assembly equipment, rotor straightening equipment, bellows-forming mandrels and dies, as follows:

List
NSG – Nuclear-related dual-use equipment, materials, software and related technology (Part 2) – INFCIRC/254/Rev.13/Part 2
a. Rotor assembly equipment for assembly of gas centrifuge rotor tube sections, baffles, and end caps;
Note: Item 3.B.2.a. includes precision mandrels, clamps, and shrink fit machines.
b. Rotor straightening equipment for alignment of gas centrifuge rotor tube sections to a common axis;
Technical Note: In Item 3.B.2.b. such equipment normally consists of precision measuring probes linked to a computer that subsequently controls the action of, for example, pneumatic rams used for aligning the rotor tube sections.
c. Bellows-forming mandrels and dies for producing single-convolution bellows.
Technical Note: The bellows referred to in Item 3.B.2.c. have all of the following characteristics:
1. Inside diameter between 75 and 650 mm;
2. Length equal to or greater than 12.7 mm;
3. Single convolution depth greater than 2 mm; and
4. Made of high-strength aluminium alloys, maraging steel, or high strength “fibrous or filamentary materials”.