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About Composites
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Easy-to-Machine Hard Fiber Sheets
- Color: Gray
- Max. Temperature: 235° F
- Tensile Strength: 9,000-21,000 psi (Good)
- Impact Strength: 1.8-2.5 ft.-lbs./in. (Good)
- Hardness: See table
- For Use Outdoors: No
- Specifications Met: See table
Also known as vulcanized fiber, these hard fiber sheets can be readily machined and punched into custom parts. They're constructed from lightweight cotton fabric that's been chemically treated to make them hard and dense. Use hard fiber to make gears and bushings.
For technical drawings and 3-D models, click on a part number.
| Thick. | Thick. Tolerance | Hardness | Specifications Met | Each | |
12" × 12" | |||||
|---|---|---|---|---|---|
| 0.02" | -0.002" to 0.002" | Rockwell R70 (Hard) | MIL-I-695A, UL 94HB | 0000000 | 00000 |
| 0.03" | -0.003" to 0.003" | Rockwell R70 (Hard) | MIL-I-695A, UL 94HB | 0000000 | 00000 |
| 1/16" | -0.005" to 0.005" | Rockwell R80 (Hard) | MIL-F-10336A, MIL-F-1148A, UL 94HB | 0000000 | 00000 |
| 3/32" | -0.007" to 0.007" | Rockwell R80 (Hard) | MIL-F-10336A, MIL-F-1148A, UL 94HB | 0000000 | 00000 |
| 1/8" | -0.015" to 0.015" | Rockwell R80 (Hard) | MIL-F-10336A, MIL-F-1148A, UL 94HB | 0000000 | 00000 |
| 3/16" | -0.015" to 0.015" | Rockwell R80 (Hard) | MIL-F-10336A, MIL-F-1148A, UL 94HB | 0000000 | 00000 |
| 1/4" | -0.015" to 0.015" | Rockwell R80 (Hard) | MIL-F-10336A, MIL-F-1148A, UL 94HB | 0000000 | 00000 |
| 3/8" | -0.02" to 0.02" | Rockwell R80 (Hard) | MIL-F-10336A, MIL-F-1148A, UL 94HB | 0000000 | 000000 |
| 1/2" | -0.025" to 0.025" | Rockwell R80 (Hard) | MIL-F-10336A, MIL-F-1148A, UL 94HB | 0000000 | 000000 |
24" × 39" | |||||
| 0.02" | -0.002" to 0.002" | Rockwell R70 (Hard) | MIL-I-695A, UL 94HB | 0000000 | 00000 |
| 0.03" | -0.003" to 0.003" | Rockwell R70 (Hard) | MIL-I-695A, UL 94HB | 0000000 | 00000 |
| 1/16" | -0.005" to 0.005" | Rockwell R80 (Hard) | MIL-F-10336A, MIL-F-1148A, UL 94HB | 0000000 | 00000 |
| 3/32" | -0.007" to 0.007" | Rockwell R80 (Hard) | MIL-F-10336A, MIL-F-1148A, UL 94HB | 0000000 | 000000 |
| 1/8" | -0.015" to 0.015" | Rockwell R80 (Hard) | MIL-F-10336A, MIL-F-1148A, UL 94HB | 0000000 | 000000 |
| 3/16" | -0.015" to 0.015" | Rockwell R80 (Hard) | MIL-F-10336A, MIL-F-1148A, UL 94HB | 0000000 | 000000 |
| 1/4" | -0.015" to 0.015" | Rockwell R80 (Hard) | MIL-F-10336A, MIL-F-1148A, UL 94HB | 0000000 | 000000 |
| 3/8" | -0.02" to 0.02" | Rockwell R80 (Hard) | MIL-F-10336A, MIL-F-1148A, UL 94HB | 0000000 | 000000 |
| 1/2" | -0.025" to 0.025" | Rockwell R80 (Hard) | MIL-F-10336A, MIL-F-1148A, UL 94HB | 0000000 | 000000 |
39" × 48" | |||||
| 0.02" | -0.002" to 0.002" | Rockwell R70 (Hard) | MIL-I-695A, UL 94HB | 0000000 | 00000 |
| 0.03" | -0.003" to 0.003" | Rockwell R70 (Hard) | MIL-I-695A, UL 94HB | 0000000 | 00000 |
| 1/16" | -0.005" to 0.005" | Rockwell R80 (Hard) | MIL-F-10336A, MIL-F-1148A, UL 94HB | 0000000 | 000000 |
| 3/32" | -0.007" to 0.007" | Rockwell R80 (Hard) | MIL-F-10336A, MIL-F-1148A, UL 94HB | 0000000 | 000000 |
| 1/8" | -0.015" to 0.015" | Rockwell R80 (Hard) | MIL-F-10336A, MIL-F-1148A, UL 94HB | 0000000 | 000000 |
| 3/16" | -0.015" to 0.015" | Rockwell R80 (Hard) | MIL-F-10336A, MIL-F-1148A, UL 94HB | 0000000 | 000000 |
| 1/4" | -0.015" to 0.015" | Rockwell R80 (Hard) | MIL-F-10336A, MIL-F-1148A, UL 94HB | 0000000 | 000000 |
| 3/8" | -0.02" to 0.02" | Rockwell R80 (Hard) | MIL-F-10336A, MIL-F-1148A, UL 94HB | 0000000 | 000000 |
| 1/2" | -0.025" to 0.025" | Rockwell R80 (Hard) | MIL-F-10336A, MIL-F-1148A, UL 94HB | 0000000 | 000000 |
Electrically Insulating Hard Fiber
- Color: Gray
- Max. Temperature: 235° F
- Tensile Strength: See Table
- Impact Strength: 2.5 ft.-lbs./in. (Good)
- Hardness: Rockwell R70 (Hard)
- For Use Outdoors: No
- Specifications Met: MIL-I-695A, UL 94HB
Widely known as fishpaper and vulcanized fiber, these thin sheets offer better electrical insulation than standard hard fiber sheets. They are constructed from lightweight cotton fabric that's been chemically treated to make it hard and dense.
| Thick. | Thick. Tolerance | Tensile Strength | Each | |
12" × 12" | ||||
|---|---|---|---|---|
| 0.005" | -0.001" to 0.001" | 9,000-21,000 psi (Good) | 0000000 | 00000 |
| 0.01" | -0.001" to 0.001" | 9,000-21,000 psi (Good) | 0000000 | 0000 |
| 0.015" | -0.002" to 0.002" | 9,000-21,000 psi (Good) | 0000000 | 0000 |
| 0.02" | -0.002" to 0.002" | Not Rated | 0000000 | 0000 |
| 0.025" | -0.003" to 0.003" | Not Rated | 0000000 | 00000 |
| 0.03" | -0.003" to 0.003" | Not Rated | 0000000 | 00000 |
| 0.04" | -0.004" to 0.004" | Not Rated | 0000000 | 00000 |
| 0.045" | -0.005" to 0.005" | Not Rated | 0000000 | 00000 |
| 0.062" | -0.007" to 0.007" | 10,000-21,000 psi (Good) | 0000000 | 00000 |
24" × 39" | ||||
| 0.005" | -0.001" to 0.001" | 9,000-21,000 psi (Good) | 0000000 | 00000 |
| 0.01" | -0.001" to 0.001" | 9,000-21,000 psi (Good) | 0000000 | 00000 |
| 0.015" | -0.002" to 0.002" | 9,000-21,000 psi (Good) | 0000000 | 00000 |
| 0.02" | -0.002" to 0.002" | Not Rated | 0000000 | 00000 |
| 0.025" | -0.003" to 0.003" | Not Rated | 0000000 | 00000 |
| 0.03" | -0.003" to 0.003" | Not Rated | 0000000 | 00000 |
| 0.04" | -0.004" to 0.004" | Not Rated | 0000000 | 00000 |
| 0.045" | -0.005" to 0.005" | Not Rated | 0000000 | 00000 |
| 0.062" | -0.007" to 0.007" | 10,000-21,000 psi (Good) | 0000000 | 00000 |
39" × 48" | ||||
| 0.005" | -0.001" to 0.001" | 9,000-21,000 psi (Good) | 0000000 | 00000 |
| 0.01" | -0.001" to 0.001" | 9,000-21,000 psi (Good) | 0000000 | 00000 |
| 0.015" | -0.002" to 0.002" | 9,000-21,000 psi (Good) | 0000000 | 00000 |
| 0.02" | -0.002" to 0.002" | Not Rated | 0000000 | 00000 |
| 0.025" | -0.003" to 0.003" | Not Rated | 0000000 | 00000 |
| 0.03" | -0.003" to 0.003" | Not Rated | 0000000 | 00000 |
| 0.04" | -0.004" to 0.004" | Not Rated | 0000000 | 00000 |
| 0.045" | -0.005" to 0.005" | Not Rated | 0000000 | 000000 |
| 0.062" | -0.007" to 0.007" | 10,000-21,000 psi (Good) | 0000000 | 000000 |
Electrical-Insulating Sleeve Washers
Also known as shoulder or insulator washers, these nonmetal washers block electrical current and prevent galvanic corrosion from mating different types of metal.
Hard fiber washers resist organic solvents and petroleum-based oil.
For technical drawings and 3-D models, click on a part number.
Temperature Range, °F | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | ID | OD | Sleeve OD | Thick. | Overall Ht. | Min. | Max. | Color | Pkg. Qty. | Pkg. | |
Hard Fiber | |||||||||||
| No. 2 | 0.090" | 0.250" | 0.154" | 0.030" | 0.055" | Not Rated | 230° | Black | 50 | 000000000 | 000000 |
| No. 4 | 0.116" | 0.250" | 0.186" | 0.030" | 0.055" | Not Rated | 230° | Black | 50 | 000000000 | 00000 |
| No. 6 | 0.142" | 0.313" | 0.186" | 0.040" | 0.070" | Not Rated | 230° | Black | 50 | 000000000 | 0000 |
| No. 8 | 0.168" | 0.375" | 0.246" | 0.040" | 0.070" | Not Rated | 230° | Black | 50 | 000000000 | 00000 |
| No. 10 | 0.194" | 0.375" | 0.312" | 0.040" | 0.070" | Not Rated | 230° | Black | 50 | 000000000 | 00000 |
| 1/4" | 0.254" | 0.500" | 0.312" | 0.040" | 0.070" | Not Rated | 230° | Black | 50 | 000000000 | 0000 |
| 3/8" | 0.380" | 0.625" | 0.437" | 0.060" | 0.100" | Not Rated | 230° | Black | 50 | 000000000 | 00000 |
The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)