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Electrically Insulating Hard Fiber
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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.
6" Wide × 12" Long | 12" Wide × 12" Long | 24" Wide × 39" Long | 39" Wide × 48" Long | 39" Wide × 60" Long | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thk. | Thk. Tolerance | Tensile Strength | Hardness | Mil. Spec. | Flammability Rating | Color | Max. Temp., ° F | Impact Strength | For Use Outdoors | Each | Each | Each | Each | Each | ||||||
| 0.005" | -0.001" to 0.001" | Not Rated | Rockwell R70 (Hard) | MIL-I-695 | UL 94 HB | Gray | 235 | 2.5 ft·lbf/in (Good) | No | 8490K101 | 00000 | 8490K15 | 00000 | 8490K25 | 000000 | 8490K35 | 000000 | ——— | 0 | |
| 0.01" | -0.001" to 0.001" | Not Rated | Rockwell R70 (Hard) | MIL-I-695 | UL 94 HB | Gray | 235 | 2.5 ft·lbf/in (Good) | No | 8490K102 | 0000 | 8490K11 | 0000 | 8490K21 | 00000 | 8490K31 | 00000 | 8490K103 | 000000 | |
| 0.015" | -0.002" to 0.002" | Not Rated | Rockwell R70 (Hard) | MIL-I-695 | UL 94 HB | Gray | 235 | 2.5 ft·lbf/in (Good) | No | 8490K104 | 0000 | 8490K12 | 0000 | 8490K22 | 00000 | 8490K32 | 00000 | 8490K105 | 00000 | |
| 0.02" | -0.002" to 0.002" | Not Rated | Rockwell R70 (Hard) | MIL-I-695 | UL 94 HB | Gray | 235 | 2.5 ft·lbf/in (Good) | No | 8490K106 | 0000 | 8490K37 | 00000 | 8490K38 | 00000 | 8490K39 | 00000 | ——— | 0 | |
| 0.025" | -0.003" to 0.003" | Not Rated | Rockwell R70 (Hard) | MIL-I-695 | UL 94 HB | Gray | 235 | 2.5 ft·lbf/in (Good) | No | 8490K107 | 00000 | 8490K16 | 00000 | 8490K26 | 00000 | 8490K36 | 000000 | ——— | 0 | |
| 0.03" | -0.003" to 0.003" | Not Rated | Rockwell R70 (Hard) | MIL-I-695 | UL 94 HB | Gray | 235 | 2.5 ft·lbf/in (Good) | No | 8490K108 | 00000 | 8490K51 | 00000 | 8490K52 | 00000 | 8490K53 | 00000 | ——— | 0 | |
| 0.04" | -0.004" to 0.004" | Not Rated | Rockwell R70 (Hard) | MIL-I-695 | UL 94 HB | Gray | 235 | 2.5 ft·lbf/in (Good) | No | 8490K109 | 00000 | 8490K54 | 00000 | 8490K55 | 000000 | ——— | 0 | ——— | 0 | |
| 0.045" | -0.005" to 0.005" | Not Rated | Rockwell R70 (Hard) | MIL-I-695 | UL 94 HB | Gray | 235 | 2.5 ft·lbf/in (Good) | No | 8490K111 | 00000 | 8490K57 | 00000 | 8490K58 | 000000 | ——— | 0 | ——— | 0 | |
| 0.062" | -0.007" to 0.007" | 10,000 psi to 21,000 psi (Good) | Rockwell R70 (Hard) | MIL-I-695 | UL 94 HB | Gray | 235 | 2.5 ft·lbf/in (Good) | No | ——— | 0 | 8490K61 | 00000 | 8490K62 | 000000 | 8490K63 | 000000 | ——— | 0 | |
Easy-Machine Hard Fiber Sheets
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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.
12" Wide × 12" Long | 24" Wide × 39" Long | 39" Wide × 48" Long | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thk. | Thk. Tolerance | Tensile Strength | Hardness | Mil. Spec. | Flammability Rating | Color | Max. Temp., ° F | Impact Strength | For Use Outdoors | Each | Each | Each | ||||
| 0.02" | -0.002" to 0.002" | 9,000 psi to 21,000 psi (Good) | Rockwell R70 (Hard) | MIL-I-695 | UL 94 HB | Gray | 235 | 1.8 ft·lbf/in to 2.5 ft·lbf/in (Good) | No | 8490K13 | 000000 | 8490K23 | 000000 | 8490K33 | 000000 | |
| 0.03" | -0.003" to 0.003" | 9,000 psi to 21,000 psi (Good) | Rockwell R70 (Hard) | MIL-I-695 | UL 94 HB | Gray | 235 | 1.8 ft·lbf/in to 2.5 ft·lbf/in (Good) | No | 8490K14 | 00000 | 8490K24 | 00000 | 8490K34 | 00000 | |
| 1/16" | -0.005" to 0.005" | 9,000 psi to 21,000 psi (Good) | Rockwell R80 (Hard) | MIL-F-10336, MIL-F-1148 | UL 94 HB | Gray | 235 | 1.8 ft·lbf/in to 2.5 ft·lbf/in (Good) | No | 8652K73 | 00000 | 8652K83 | 00000 | 8652K93 | 000000 | |
| 3/32" | -0.007" to 0.007" | 9,000 psi to 21,000 psi (Good) | Rockwell R80 (Hard) | MIL-F-10336, MIL-F-1148 | UL 94 HB | Gray | 235 | 1.8 ft·lbf/in to 2.5 ft·lbf/in (Good) | No | 8652K74 | 00000 | 8652K84 | 000000 | 8652K94 | 000000 | |
| 1/8" | -0.015" to 0.015" | 9,000 psi to 21,000 psi (Good) | Rockwell R80 (Hard) | MIL-F-10336, MIL-F-1148 | UL 94 HB | Gray | 235 | 1.8 ft·lbf/in to 2.5 ft·lbf/in (Good) | No | 8652K75 | 00000 | 8652K85 | 000000 | 8652K95 | 000000 | |
| 3/16" | -0.015" to 0.015" | 9,000 psi to 21,000 psi (Good) | Rockwell R80 (Hard) | MIL-F-10336, MIL-F-1148 | UL 94 HB | Gray | 235 | 1.8 ft·lbf/in to 2.5 ft·lbf/in (Good) | No | 8652K76 | 00000 | 8652K86 | 000000 | 8652K96 | 000000 | |
| 1/4" | -0.015" to 0.015" | 9,000 psi to 21,000 psi (Good) | Rockwell R80 (Hard) | MIL-F-10336, MIL-F-1148 | UL 94 HB | Gray | 235 | 1.8 ft·lbf/in to 2.5 ft·lbf/in (Good) | No | 8652K77 | 00000 | 8652K87 | 000000 | 8652K97 | 000000 | |
| 3/8" | -0.02" to 0.02" | 9,000 psi to 21,000 psi (Good) | Rockwell R80 (Hard) | MIL-F-10336, MIL-F-1148 | UL 94 HB | Gray | 235 | 1.8 ft·lbf/in to 2.5 ft·lbf/in (Good) | No | 8652K78 | 000000 | 8652K88 | 000000 | 8652K98 | 00000000 | |
| 1/2" | -0.025" to 0.025" | 9,000 psi to 21,000 psi (Good) | Rockwell R80 (Hard) | MIL-F-10336, MIL-F-1148 | UL 94 HB | Gray | 235 | 1.8 ft·lbf/in to 2.5 ft·lbf/in (Good) | No | 8652K79 | 000000 | 8652K89 | 000000 | 8652K99 | 00000000 | |
