T Twist Fingerstock Gasket
T Twist Fingerstock Gaskets are high-performance EMI shielding solutions designed for demanding compression applications where reliable electrical contact and grounding are critical. Manufactured from beryllium copper, these fingerstock gaskets provide excellent conductivity, superior spring characteristics, and long-lasting shielding effectiveness.
The T twisted finger design allows the gasket to compress to material thickness while maintaining consistent conductive contact across mating surfaces. This makes Twist Fingerstock Gaskets ideal for electronic enclosures, telecommunications equipment, industrial control systems, aerospace electronics, and military applications.
Leader Tech T Twist Gaskets are available in multiple configurations and mounting styles to meet a wide range of EMI/RFI shielding and grounding requirements.
Options
- PP = plating code from plating code table below
- X.XXX = Desired length
- Lengths greater than 24 inches are only available in the following finishes: BD, NI, SN, ST, SNPB, SU
| Leader Tech Part Number | A (in) | B (in) | C (in) | F (in) | G (in) | T (in) | Max Length (in) | Fingers at Max Length | Adhesive |
|---|---|---|---|---|---|---|---|---|---|
| Leader Tech Part Number | A (in) | B (in) | C (in) | F (in) | G (in) | T (in) | Max Length (in) | Fingers at Max Length | Adhesive |
| 3-20T-PP-X.XXX | 0.030 | 0.200 | 0.110 | 0.080 | 0.015 | 0.0030 | 300 | 3158 | Y |
| 3-23T-PP-X.XXX | 0.030 | 0.230 | 0.140 | 0.080 | 0.015 | 0.0030 | 300 | 3158 | Y |
| 3-S-23T-PP-X.XXX | 0.030 | 0.230 | 0.140 | 0.080 | 0.015 | 0.0020 | 300 | 3158 | Y |
| 6-30T-PP-X.XXX | 0.070 | 0.300 | 0.150 | 0.150 | 0.015 | 0.0030 | 300 | 1818 | Y |
| 6-S-30T-PP-X.XXX | 0.070 | 0.300 | 0.150 | 0.150 | 0.015 | 0.0020 | 300 | 1818 | Y |
| 6-34T-PP-X.XXX | 0.070 | 0.340 | 0.180 | 0.150 | 0.015 | 0.0030 | 300 | 1818 | Y |
| 6-S-34T-PP-X.XXX | 0.070 | 0.340 | 0.180 | 0.150 | 0.015 | 0.0020 | 300 | 1818 | Y |
| Leader Tech Part Number | A (mm) | B (mm) | C (mm) | F (mm) | G (mm) | T (mm) | Max Length (mm) | Fingers at Max Length | Adhesive |
|---|---|---|---|---|---|---|---|---|---|
| Leader Tech Part Number | A (mm) | B (mm) | C (mm) | F (mm) | G (mm) | T (mm) | Max Length (mm) | Fingers at Max Length | Adhesive |
| 3-20T-PP-X.XXX | 0.762 | 5.080 | 2.794 | 2.032 | 0.381 | 0.0762 | 7620 | 3158 | Y |
| 3-23T-PP-X.XXX | 0.762 | 5.842 | 3.556 | 2.032 | 0.381 | 0.0762 | 7620 | 3158 | Y |
| 3-S-23T-PP-X.XXX | 0.762 | 5.842 | 3.556 | 2.032 | 0.381 | 0.0508 | 7620 | 3158 | Y |
| 6-30T-PP-X.XXX | 1.778 | 7.620 | 3.810 | 3.810 | 0.381 | 0.0762 | 7619 | 1818 | Y |
| 6-S-30T-PP-X.XXX | 1.778 | 7.620 | 3.810 | 3.810 | 0.381 | 0.0508 | 7619 | 1818 | Y |
| 6-34T-PP-X.XXX | 1.778 | 8.636 | 4.572 | 3.810 | 0.381 | 0.0762 | 7619 | 1818 | Y |
| 6-S-34T-PP-X.XXX | 1.778 | 8.636 | 4.572 | 3.810 | 0.381 | 0.0508 | 7619 | 1818 | Y |
| Plating Code | Plating | Specification |
|---|---|---|
| BD | As Heat treated | As Heat Treated with Nitrogen |
| AU | Gold | ASTM B488, TYPE I, CODE C, CLASS 1.25 PRECEDED BY AN UNDERCOAT OF AT LEAST .000047" OF COPPER PER SAE-AMS2418 AND AT LEAST .000047" OF NICKEL PER SAE-AMS-QQ-N-290 |
| AG | Silver, Bright | ASTM B700, TYPE 2, GRADE B, CLASS N .0001" MIN PRECEDED BY A NICKEL UNDERCOAT AT LEAST .000039" THICK PER SAE-AMS-QQ-N-290 |
| MAG | Silver, Matte | ASTM B700, TYPE 2, GRADE A, CLASS N .0001" MIN PRECEDED BY A NICKEL UNDERCOAT AT LEAST .000039" THICK PER SAE-AMS-QQ-N-290 |
| CDC | Cadmium Chromate, Clear | ASTM B766, CLASS 5, TYPE III |
| CDY | Cadmium Chromate, Yellow | ASTM B766, CLASS 5, TYPE II |
| NI | Electroless Nickel RoHS | ASTM B733, TYPE IV, SC1, CLASS 1 |
| SN | Tin, Bright | ASTM B545, CLASS A PRECEDED BY A NICKEL UNDERCOAT AT LEAST .00005" THICK PER SAE-AMS-QQ-N-290 |
| ST | Tin, Matte | ASTM B545, CLASS A PRECEDED BY A NICKEL UNDERCOAT AT LEAST .00005" THICK PER SAE-AMS-QQ-N-290 |
| SNPB | Tin Lead | ASTM B 579, SC2 PRECEDED BY AN UNDERCOAT OF AT LEAST .000098" OF COPPER PER SAE-AMS2418 AND AT LEAST .000098" OF NICKEL PER SAE-AMS-QQ-N-290 |
| SU | Solderable Unplated | - |
| ZNC | Zinc, Clear | ASTM B633, SC1, TYPE III |
| ZNY | Zinc, Yellow | ASTM B633, SC1, TYPE II |