Description Assembly Order No.
Blind nuts, 1/4 NPT:
GUOMAT 2B2500
Firestone WO1-358-6955 /
Firestone W01-358-6955 /
Firestone W013586955
Blind nuts, 3/4 NPT:
Firestone WO1-358-6956 /
Firestone W01-358-6956 /
Firestone W013586956
Rubber bellows only:
Firestone WO1-358-0048 /
Firestone W01-358-0048 /
Firestone W013580048
Ply Socket head aluminum bead:WO1-358-6833
Assembly weight 3.9 lbs.
Force to collapse to minimum height (@ 0 PSIG) 50 lbs.
GUOMAT 2B2500 Specifications and Detail Technical Parameters
Nut / Blind Nut
Top Cover Plate Screw (Nut) Tooth : 2 pcs X 3/8-16
Screw Center Distance of Top Cover Plate : 44 mm
Bottom Cover Plate Screw (Nut) Tooth : 2 pcs X 3/8-16
Screw Center Distance of Bottom Cover Plate : 44 mm
Gas Hole / Air inlet / Air Fitting
Gas Hole / Air inlet : 1/4NPT
Cover Plate
Top Cover Plate Diameter (Width): 111 mm
Bottom Cover Plate Diameter (Width): 111 mm
Rubber Bellows
Rubber Bellows Natural Diameter : 146 mm
Rubber Bellows MAX Diameter : 165 mm
Installation Space Diameter : 180 mm
Rubber Bellows Natural Height : 175 mm
Bumper block / Buffer block
Without Bumper Block
Girdle Hoop / Girdle Ring
With Girdle Hoop :One Pieces of Girdle Hoop
| Dynamic Characteristics at 6.0 in. Design Height (Required for Airmount isolator design only) |
| Volume @ 100 PSIG = 100 in3 | Natural Frequency |
| Gage Pressure (PSIG) | Load (lbs.) | Spring Rate (lbs./ in.) | CPM | HZ |
| 40 | 566 | 309 | 139 | 2.32 |
| 60 | 871 | 432 | 132 | 2.21 |
| 80 | 1,194 | 565 | 129 | 2.16 |
| 100 | 1,524 | 681 | 126 | 2.10 |
| W01-358-6955 255-1.5 750 830 | W01-358-7558 233-2 750 868 |
| W01-358-7598 116-1 750 568 | W01-358-7802 313 750 880 |
| W01-358-0324 324 751 005 | W01-358-3008 2M2A 750 521 |
| W01-358-6956 255-1.5 750 832 | W01-358-6986 218 750 850 M |
| W01-358-7600 117 750 580 | W01-358-7808 313 750 900 |
| W01-358-0480 1X84D-1 751 512 | W01-358-3019 2M2A 750 522 |
| W01-358-6966 121 750 605 M | W01-358-6987 207 750 760 M |
| W01-358-7602 117 750 590 | W01-358-7815 39 750 427 |
| W01-358-0987 320 750 967 | W01-358-3400 224 750 865 |
| W01-358-6968 324 751 010 M | W01-358-6988 26 750 365 M |
| W01-358-7605 116-1 750 569 | W01-358-7823 323 750 990 |
| W01-358-1002 328 751 430 | W01-358-3403 224 750 864 |
| W01-358-6969 148-1 750 675 M | W01-358-6990 20 750 230 M |
| W01-358-7606 117 750 600 | W01-358-7829 324 751 010 |
| W01-358-1021 148-1 750 677 | W01-358-3407 224 750 866 |
| W01-358-6970 248-2 750 855 M | W01-358-6996 16 750 112 |
| W01-358-7649 124 750 620 | W01-358-7830 333 751 022 |
| W01-358-1022 248-2 751 420 | W01-358-4001 4001 750 525 |
| W01-358-6971 348-3 751 012 M | W01-358-7001 16 750 110 |
