| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
Panduit Corporation |
STAINLESS STEEL, 1/4 SPLIT LOCKW |
0 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .643 ID, 1.225 OD, |
4963 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .688 ID, .865 OD, . |
0 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .215 ID, .740 OD, . |
4500 |
|
 |
TubeDepot |
FLAT WASHER 440 SAE |
250 |
|
 |
Richco, Inc. (Essentra Components) |
WASHER FLAT M3.5 NYLON |
7104 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .220 ID, .438 OD, . |
0 |
|
 |
Keystone Electronics Corp. |
WASHER SPLIT LOCK #4 STEEL |
2147483647 |
|
 |
Richco, Inc. (Essentra Components) |
SEALING AND RETAINING WASHER, .3 |
2211 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, 8.40MM ID, M8 / 5/1 |
25000 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .659 ID, 1.575 OD, |
1500 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .085 ID, .148 OD, . |
0 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .260 ID, .615 OD, . |
5000 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .515 ID, .900 OD, . |
5000 |
|
 |
Richco, Inc. (Essentra Components) |
WASHER FLAT M12 NYLON |
1536 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .200 ID, .390 OD, . |
4865 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .230 ID, .970 OD, . |
3040 |
|
 |
B&F Fastener Supply |
WASHER INT TOOTH #10 STEEL |
6163 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .312 ID, .855 OD, . |
2000 |
|
 |
Richco, Inc. (Essentra Components) |
FLAT WASHER, .255 ID, .332 OD, . |
0 |
|
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: