| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
Keystone Electronics Corp. |
WASHER FLAT #6 FIBRE |
1828479600 |
|
 |
Keystone Electronics Corp. |
WASHER FLAT #10 FIBRE |
15000 |
|
 |
B&F Fastener Supply |
WASHER SPLIT LOCK M5 STEEL |
600 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .656 ID, 1.312 OD, |
1000 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .239 ID, .344 OD, . |
0 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .150 ID, .750 OD, . |
1971 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, NYLON, BLACK, .257 |
9280 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .200 ID, .440 OD, . |
1900 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .136 ID, .384 OD, . |
0 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .665 ID, 1.500 OD, |
5000 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .141 ID, .562 OD, . |
9500 |
|
 |
B&F Fastener Supply |
WASHER SPLIT LOCK M3 STEEL |
47386 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .187 ID, .500 OD, . |
2995 |
|
 |
Richco, Inc. (Essentra Components) |
RETAINING WASHER, FOR #6 SCREW, |
22896 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .235 ID, .425 OD, . |
2900 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .889 ID, 1.125 OD, |
2997 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, NYLON, BLACK, .406 |
2685 |
|
 |
Switchcraft / Conxall |
WASHER FLAT PLASTIC |
393 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .116 ID, .187 OD, . |
0 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .275 ID, 2.150 OD, |
999 |
|
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: