End Type End Type |
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 | Plain |
Material Material |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Finish Finish | Show |
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Finish Finish | Hide |
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Specifications Met Specifications Met |
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Shaft Type Shaft Type |
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 | Slotted |
For Hole Diameter For Hole Diameter |
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Washer Type Washer Type |
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 | Spring Lock |
Spring Lock Washer Shape Spring Lock Washer Shape |
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 | Conical |
Minimum Hardness Minimum Hardness |
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Breaking Strength Breaking Strength |
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Thickness Thickness |
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Hardness Hardness |
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About Washers
More
Slotted Spring Pins
Also known as roll, tension, split, and expansion pins, these pins have a slot along one side that you squeeze closed to install them into unthreaded holes. Once installed, they expand slightly, creating outward tension that holds them tight against the hole wall. These pins absorb shock and vibration in your system, and keep parts from loosening. They are often used as hinge pins, or to hold springs and power transmission components in place.
Install these pins into a hole slightly smaller than the pin diameter. They have at least one chamfered end, which means the end is angled to make insertion easier.
Breaking strength is measured as double shear, which is the amount of force required to break a pin into three pieces.
Steel pins are strong and wear resistant. Pins with a black-phosphate or zinc-plated finish have an outer layer to protect the steel underneath from rust.
Pins that meet MS16562 conform to military standards for material and dimensions.
For technical drawings and 3-D models, click on a part number.
| Lg. | For Hole Dia. | Wall Thick. | Min. Hardness | Breaking Strength, lbs. | Specifications Met | Pkg. Qty. | Pkg. | |
1/16" Dia. | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/4" | 0.062"-0.065" | 0.012" | Rockwell C46 | 400 | MS16562-96 | 50 | 000000000 | 00000 |
| 3/8" | 0.062"-0.065" | 0.012" | Rockwell C46 | 400 | MS16562-98 | 50 | 000000000 | 0000 |
3/32" Dia. | ||||||||
| 1/2" | 0.094"-0.097" | 0.022" | Rockwell C46 | 1,000 | MS16562-119 | 50 | 000000000 | 00000 |
| 3/4" | 0.094"-0.097" | 0.022" | Rockwell C46 | 1,000 | MS16562-122 | 50 | 000000000 | 00000 |
1/8" Dia. | ||||||||
| 1/2" | 0.125"-0.129" | 0.028" | Rockwell C46 | 2,100 | MS16562-127 | 25 | 000000000 | 0000 |
| 5/8" | 0.125"-0.129" | 0.028" | Rockwell C46 | 2,100 | MS16562-129 | 25 | 000000000 | 0000 |
| 3/4" | 0.125"-0.129" | 0.028" | Rockwell C46 | 2,100 | MS16562-130 | 25 | 000000000 | 0000 |
| 1" | 0.125"-0.129" | 0.028" | Rockwell C46 | 2,100 | MS16562-132 | 25 | 000000000 | 0000 |
3/16" Dia. | ||||||||
| 3/4" | 0.187"-0.192" | 0.04" | Rockwell C46 | 4,400 | MS16562-142 | 25 | 000000000 | 00000 |
| 1" | 0.187"-0.192" | 0.04" | Rockwell C46 | 4,400 | MS16562-144 | 25 | 000000000 | 00000 |
1/4" Dia. | ||||||||
| 3/4" | 0.25"-0.256" | 0.048" | Rockwell C46 | 7,700 | MS16562-156 | 10 | 000000000 | 0000 |
| 7/8" | 0.25"-0.256" | 0.048" | Rockwell C46 | 7,700 | MS16562-157 | 10 | 000000000 | 0000 |
| 1" | 0.25"-0.256" | 0.048" | Rockwell C46 | 7,700 | MS16562-158 | 10 | 000000000 | 00000 |
| 1 1/4" | 0.25"-0.256" | 0.048" | Rockwell C46 | 7,700 | MS16562-159 | 10 | 000000000 | 00000 |
| 1 1/2" | 0.25"-0.256" | 0.048" | Rockwell C46 | 7,700 | MS16562-160 | 10 | 000000000 | 00000 |
| 2" | 0.25"-0.256" | 0.048" | Rockwell C46 | 7,700 | MS16562-162 | 10 | 000000000 | 00000 |
3/8" Dia. | ||||||||
| 1" | 0.375"-0.382" | 0.077" | Rockwell C46 | 17,600 | MS16562-171 | 5 | 000000000 | 00000 |
| 1 1/2" | 0.375"-0.382" | 0.077" | Rockwell C46 | 17,600 | MS16562-173 | 5 | 000000000 | 00000 |
| 2" | 0.375"-0.382" | 0.077" | Rockwell C46 | 17,600 | MS16562-175 | 5 | 000000000 | 00000 |
1/2" Dia. | ||||||||
| 1 1/2" | 0.5"-0.51" | 0.094" | Rockwell C46 | 25,500 | MS16562-184 | 1 | 000000000 | 0000 |
| 2" | 0.5"-0.51" | 0.094" | Rockwell C46 | 25,500 | MS16562-186 | 1 | 000000000 | 0000 |
| 3" | 0.5"-0.51" | 0.094" | Rockwell C46 | 25,500 | MS16562-188 | 1 | 000000000 | 0000 |
Metric Spring Lock Washers
The arched shape of these washers presses up against a bolt and down against a nut to prevent loosening from wear, vibration, or temperature changes. Similar to a spring, they flatten out as pressure is applied, helping to absorb shocks. They grip bolts more tightly than split and tooth lock washers. Unlike split lock washers, which can only be tightened in one direction, these washers have a continuous body that can rotate in either direction.
Conical and curved washers are functionally the same, and are often referenced using their DIN specifications. These DIN specifications refer to slight differences in OD and thickness. DIN 6796 is the standard for conical spring lock washers, which are also known as Belleville washers.
Steel washers are stronger and more wear resistant than zinc-plated steel and stainless steel. They are best for dry environments, since moisture will cause them to rust. Similar to zinc plating, washers with a black phosphate coating are protected from rust in wet environments. They have a black finish that blends in with dark surfaces.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID, mm | OD, mm | Thick., mm | Overall Ht., mm | Hardness | Pkg. Qty. | Pkg. | |
Conical—DIN 6796 | ||||||||
|---|---|---|---|---|---|---|---|---|
Black-Phosphate Steel | ||||||||
| M2 | 2.2 | 5.0 | 0.4 | 0.60 | Rockwell C42 | 100 | 000000000 | 00000 |
| M3 | 3.2 | 7.0 | 0.6 | 0.85 | Rockwell C42 | 100 | 000000000 | 0000 |
| M4 | 4.3 | 9.0 | 1.0 | 1.30 | Rockwell C42 | 100 | 000000000 | 00000 |
| M5 | 5.3 | 11.0 | 1.2 | 1.55 | Rockwell C42 | 100 | 000000000 | 00000 |
| M6 | 6.4 | 14.0 | 1.5 | 2.00 | Rockwell C42 | 50 | 000000000 | 0000 |
| M8 | 8.4 | 18.0 | 2.0 | 2.60 | Rockwell C42 | 50 | 000000000 | 00000 |
| M10 | 10.5 | 23.0 | 2.5 | 3.20 | Rockwell C42 | 10 | 000000000 | 0000 |
| M12 | 13.0 | 29.0 | 3.0 | 3.95 | Rockwell C42 | 10 | 000000000 | 00000 |
| M14 | 15.0 | 35.0 | 3.5 | 4.65 | Rockwell C42 | 3 | 000000000 | 0000 |
| M16 | 17.0 | 39.0 | 4.0 | 5.25 | Rockwell C42 | 3 | 000000000 | 0000 |
| M18 | 19.0 | 42.0 | 4.5 | 5.80 | Rockwell C42 | 2 | 000000000 | 0000 |
| M20 | 21.0 | 45.0 | 5.0 | 6.40 | Rockwell C42 | 1 | 000000000 | 0000 |
| M22 | 23.0 | 49.0 | 5.5 | 7.05 | Rockwell C42 | 1 | 000000000 | 0000 |
| M24 | 25.0 | 56.0 | 6.0 | 7.75 | Rockwell C42 | 1 | 000000000 | 0000 |