Seastrom Manufacturing

Product Search - Prepackaged Washers / Single External Notch Washer: A870

Single External Notch Washer

Single external notch washers are designed to be used with keys to prevent the rotation of the washer relative to the shaft.

Available Materials: Steel (cold rolled steel) single external notch washer

Available Finishes: No finish

If you need additional information on your particular single external notch washer application click on one of the links below:
     View our material & finish specification sheets
     View metallic material characteristic information
     View finish characteristic information

Did you know Seastrom is more than single external notch washers?We manufacture and stock over 44,000 part numbers to make your washer & fastener sourcing job easy.

Don't see what you need?

Click here to revise your search

Click here to request a custom quote

Click on the Column Name to re-sort data.

Dimensions in Inches

Product Number	A	B	C	D	T	Material	Qty/Pack	# of Packs	Leadtime	Get Pricing
A870-7	0.067	0.171	0.039	0.032	0.030	Cold Rolled Steel	10	25	5-6 Weeks	Price
A870-8	0.095	0.190	0.023	0.058	0.018	Cold Rolled Steel	10	5	5-6 Weeks	Price
A870-9	0.100	0.312	0.054	0.080	0.020	Cold Rolled Steel	10	21	5-6 Weeks	Price
A870-10	0.130	0.807	0.250	0.312	0.020	Cold Rolled Steel	10	29	5-6 Weeks	Price
A870-11	0.140	0.807	0.247	0.312	0.024	Cold Rolled Steel	10	8	5-6 Weeks	Price
A870-12	0.156	0.448	0.068	0.115	0.030	Cold Rolled Steel	10	6	5-6 Weeks	Price
A870-13	0.187	0.475	0.040	0.063	0.042	Cold Rolled Steel	10	1	5-6 Weeks	Price
A870-14	0.255	0.470	0.030	0.063	0.030	Cold Rolled Steel	10	20	5-6 Weeks	Price
A870-15	0.265	0.571	0.062	0.082	0.030	Cold Rolled Steel	10	13	5-6 Weeks	Price
A870-16	0.344	0.578	0.078	0.094	0.010	Cold Rolled Steel	10	3	5-6 Weeks	Price
A870-17	0.375	1.266	0.100	0.113	0.060	Cold Rolled Steel	10	0	5-6 Weeks	Price
A870-18	0.400	0.906	0.128	0.187	0.060	Cold Rolled Steel	10	33	5-6 Weeks	Price
A870-19	0.457	0.975	0.129	0.187	0.060	Cold Rolled Steel	10	57	5-6 Weeks	Price
A870-20	0.505	1	0.110	0.235	0.030	Cold Rolled Steel	10	52	5-6 Weeks	Price
A870-21	0.640	1.266	0.100	0.113	0.060	Cold Rolled Steel	10	0	5-6 Weeks	Price
A870-22	0.765	1.266	0.100	0.113	0.060	Cold Rolled Steel	10	0	5-6 Weeks	Price
A870-23	0.890	1.317	0.048	0.078	0.060	Cold Rolled Steel	10	0	5-6 Weeks	Price
A870-24	1.020	1.317	0.048	0.078	0.060	Cold Rolled Steel	10	46	5-6 Weeks	Price

Click here for a Custom Quote.

Contact Us

Company Info

Product Directory

Purely Custom

Subsidiaries

Use of this site acknowledges agreement of our Terms and Conditions. All website design, text, graphics, and the selection and arrangement thereof, are the property of Seastrom Manufacturing Co., Inc. and are Copyright ©2025 Seastrom Manufacturing Co., Inc. All Rights Reserved. SEASTROM, SEASTROM MANUFACTURING and the Seastrom logo are trademarks owned by Seastrom Manufacturing Co., Inc.