451-2178 33 mm ID Washer
Flat Washer
Description
Cat® fastener parts are designed for specific applications based on size, strength, clamp load and past performance, information other manufacturers do not have. They are carefully selected to last until machine rebuild or end of life. Non-Cat hardware and fasteners may appear to fit your machine, but no one else knows your equipment the way we do.
Features
- Cat fasteners are manufactured to precise specifications for durability, reliability and high efficiency
- Strength and Quality – Fasteners meet or exceed ISO, ASTM, ASME and SAE requirements.
- Cat bolts, nuts and washers are specifically designed to work together as a system to maximize clamping force.
- Coating meets the special requirements of different applications (RoHS compliant).
Applications
Cat bolts form a high-performance system with mating washers and nuts to produce consistent, high clamping force. You can rely on Cat fasteners to help you build, maintain or rebuild – for most machine and shop applications around the world.
Specifications
| Gasket Type | Flat Washer |
|---|---|
| Material | Alloy Zinc |
| Outside Diameter | 56 mm (2.205 in) |
| Inside Diameter | 33 mm (1.299 in) |
| Fits Bolt Size | M30 mm |
| Thickness | 6 mm (0.236 in) |
| Coating | Zinc plating provides low to moderate corrosion protection and electrical conductivity. Salt spray resistance: 96 hours with no white rust. Coating color – silver. |
Compatible Equipment
- Wheel Excavators: M315GC, M320, M315
- Excavators: 313, 349F L, 374, 313 GC, 316 GC, 352, 320 GC, 333, 340, 330 GC, 320 GX, 374F L, 3101, 336F L, 336E H, 329E L, 320, 328D LCR, 336, 336F, 336E, 336E L, 323, 326, 325, 336F LN, 323GC, 385C FS, 349, 385B, 349E L, 385C, 352F, 390F, 390D, 349E, 349E L VG, 365C, 345C, 385C L, 365C L, 365B, 345C L, 315, 315 GC, 350, 355, 365B L, 345 GC, 335, 395, 320D3 GC, 336 GC, 333 GC, 326 GC, 323 GC, 320D3, 312 GC, 323 GX, 330GC, 326GC, 329E, 336F L XE, 336E LN, 336E LH, 335F LCR, 390F L, 374F, 374D L, 330, 390D L
- Wheel Loaders: M314
Additional information
| Machine Model | 3101, 312 GC, 313, 313 GC, 315, 315 GC, 316 GC, 320, 320 GC, 320 GX, 320D3, 320D3 GC, 323, 323 GC, 323 GX, 323GC, 325, 326, 326 GC, 326GC, 328D LCR, 329E, 329E L, 330, 330 GC, 330GC, 333, 333 GC, 335, 335F LCR, 336, 336 GC, 336E, 336E H, 336E L, 336E LH, 336E LN, 336F, 336F L, 336F L XE, 336F LN, 340, 345 GC, 345C, 345C L, 349, 349E, 349E L, 349E L VG, 349F L, 350, 352, 352F, 355, 365B, 365B L, 365C, 365C L, 374, 374D L, 374F, 374F L, 385B, 385C, 385C FS, 385C L, 390D, 390D L, 390F, 390F L, 395, M314, M315, M315GC, M320 |
|---|---|
| Equipment Type | |
| Part Source | Genuine OEM |








