| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .100 ID, 1.250 OD, |
1000 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .140 ID, .400 OD, . |
4000 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .260 ID, .745 OD, . |
11999 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, NYLON, NATURAL, .38 |
46273 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .477 ID, 1.184 OD, |
3000 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .265 ID, .591 OD, . |
0 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .340 ID, 1.260 OD, |
3475 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .266 ID, 1.000 OD, |
0 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .433 ID, .984 OD, . |
2000 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .692 ID, .960 OD, . |
0 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, NYLON, BLACK, .380 |
10000 |
|
 |
Richco, Inc. (Essentra Components) |
WASHER FLAT M4 NYLON NATURAL |
9729 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .198 ID, .255 OD, . |
0 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .170 ID, .682 OD, . |
2600 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, 1.031 ID, 1.375 OD, |
0 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .590 ID, .778 OD, . |
0 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .290 ID, .445 OD, . |
4725 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .071 ID, .145 OD, . |
0 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .349 ID, .452 OD, . |
0 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, NYLON, NATURAL, .50 |
49469 |
|
Washers are thin plate-like mechanical components with a central hole, typically used to distribute the load of threaded fasteners, prevent loosening, or create seals. As critical elements in assembly systems, they enhance structural integrity, reduce wear, and improve vibration resistance. Modern engineering applications rely on washers to optimize performance across diverse environments.
| Type | Functional Characteristics | Application Examples |
|---|---|---|
| Flat Washers | Distribute load, prevent surface damage | Machinery bases, construction equipment |
| Spring Washers | Provide axial tension, absorb vibrations | Automotive engines, railway tracks |
| Lock Washers | Prevent nut/bolt rotation under vibration | Aerospace fasteners, industrial pumps |
| Sealing Washers | Create fluid/gas-tight barriers | Pipe flanges, hydraulic systems |
Typical washers feature a flat annular design with precise inner/outer diameter ratios. Advanced variants incorporate:
| Parameter | Importance |
|---|---|
| Material Hardness (HV/HRC) | Determines wear resistance and load capacity |
| Inner Diameter Tolerance ( m) | Affects fit precision with fasteners |
| Corrosion Resistance (hrs in salt spray) | Dictates service life in harsh environments |
| Spring Rate (N/mm) | Measures elasticity for vibration damping |
| Operating Temperature Range ( C) | Defines thermal stability limits |
| Manufacturer | Representative Product | Key Feature |
|---|---|---|
| Nord-Lock Group | X-series washers | wedge-locking system for vibration resistance |
| ITW Shakeproof | Prevailing torque washers | Deformable split ring design |
| MISUMI | FCMZ series spring washers | Optimized for robotic assembly |
Key considerations include:
Example: Selecting stainless steel Belleville washers for offshore wind turbine bolts ensures corrosion resistance and maintains clamping force under dynamic loads.
Emerging trends include: