Semroc Centering Rings Fiber BT-20 to BT-56(2pk) RA-20-56
Featherweight laser-cut fiber rings which center a BT-20 tube(0.736") inside a BT-56 series tube(1.361"). Especially useful for making a standard engine mount for BT-56 rocket bodies. Requires two per engine mount. Thickness is 0.05"
I.D = 0.736
O.D = 1.319
Semroc Centering Rings Fiber BT-20 to BT-70(2pk) SEM-RA-20-70 Laser-cut rings for centering a BT-20 tube inside a BT-70 tube
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Semroc Centering Rings Fiber BT-20 to BT-60(2pk) SEM-RA-20-60 Laser-cut rings for centering a BT-20 tube inside a BT-60 tube
Semroc Centering Rings Fiber BT-20 to BT-58(2pk) SEM-RA-20-58 Laser-cut rings for centering a BT-20 tube inside a BT-58 tube
Semroc Centering Rings Fiber BT-20 to BT-70(2pk) SEM-RA-20-70 Laser-cut rings for center…
Semroc Centering Rings Fiber BT-5 to BT-20(2pk) SEM-RA-5-20 Laser-cut rings for centering a BT…
Semroc Centering Rings Fiber BT-20 to BT-60(2pk) SEM-RA-20-60 Laser-cut rings for centering a …
Semroc Centering Rings Fiber BT-20 to BT-58(2pk) SEM-RA-20-58 Laser-cut rings for center…
