Click Specification

Same specifications, different dimensions for other parts.

Plain Washers - Type A (ASTM F844)

ASME B 18.21.1 - 2009 (R2016)

Display drawing:

Size

10#

3/16

12#

1/4

5/16

3/8

7/16

Series
d	Nominal Size
	max
	min
d_c	Nominal Size
	max
	min
h	Nominal Size
	max
	min

-	-	-	-	-	-	-	-	N	W	N	W	N	W	N
0.078	0.094	0.125	0.156	0.188	0.219	0.250	0.250	0.281	0.312	0.344	0.375	0.406	0.438	0.469
0.078	0.094	0.133	0.164	0.196	0.227	0.265	0.265	0.296	0.327	0.359	0.390	0.421	0.453	0.484
0.073	0.089	0.120	0.151	0.183	0.214	0.245	0.245	0.276	0.307	0.339	0.370	0.401	0.433	0.464
0.188	0.250	0.312	0.375	0.438	0.500	0.562	0.562	0.625	0.734	0.688	0.875	0.812	1.000	0.922
0.188	0.250	0.320	0.390	0.453	0.515	0.577	0.577	0.640	0.749	0.703	0.905	0.827	1.030	0.937
0.183	0.245	0.307	0.370	0.433	0.495	0.557	0.557	0.620	0.727	0.681	0.868	0.805	0.993	0.915
0.020	0.020	0.032	0.049	0.049	0.049	0.049	0.065	0.065	0.065	0.065	0.083	0.065	0.083	0.065
0.025	0.025	0.040	0.065	0.065	0.065	0.065	0.080	0.080	0.080	0.080	0.104	0.080	0.104	0.080
0.016	0.016	0.025	0.036	0.036	0.036	0.036	0.051	0.051	0.051	0.051	0.064	0.051	0.064	0.051

Size

7/16

1/2

9/16

5/8

3/4

7/8

1-1/8

Series
d	Nominal Size
	max
	min
d_c	Nominal Size
	max
	min
h	Nominal Size
	max
	min

W	N	W	N	W	N	W	N	W	N	W	N	W	N	W
0.500	0.531	0.562	0.594	0.625	0.656	0.688	0.812	0.812	0.938	0.938	1.062	1.062	1.250	1.250
0.515	0.546	0.577	0.609	0.64	0.686	0.718	0.842	0.842	0.968	0.968	1.092	1.092	1.280	1.280
0.495	0.526	0.557	0.589	0.62	0.649	0.681	0.805	0.805	0.931	0.931	1.055	1.055	1.243	1.243
1.250	1.062	1.375	1.156	1.469	1.312	1.750	1.469	2.000	1.750	2.250	2.000	2.500	2.250	2.750
1.280	1.092	1.405	1.186	1.499	1.342	1.780	1.499	2.030	1.780	2.280	2.030	2.530	2.280	2.780
1.243	1.055	1.368	1.149	1.462	1.305	1.743	1.462	1.993	1.743	2.243	1.993	2.493	2.243	2.743
0.083	0.095	0.109	0.095	0.109	0.095	0.134	0.134	0.148	0.134	0.165	0.134	0.165	0.134	0.165
0.104	0.121	0.132	0.121	0.132	0.121	0.160	0.160	0.177	0.160	0.192	0.160	0.192	0.160	0.192
0.064	0.074	0.086	0.074	0.086	0.074	0.108	0.108	0.122	0.108	0.136	0.108	0.136	0.108	0.136

Size

1-1/4

1-3/8

1-1/2

1-5/8

1-3/4

1-7/8

2-1/4

2-1/2

2-3/4

Series
d	Nominal Size
	max
	min
d_c	Nominal Size
	max
	min
h	Nominal Size
	max
	min

N	W	N	W	N	W	-	-	-	-	-	-	-	-
1.375	1.375	1.500	1.500	1.625	1.625	1.750	1.875	2.000	2.125	2.375	2.625	2.875	3.125
1.405	1.405	1.530	1.545	1.655	1.670	1.795	1.920	2.045	2.170	2.420	2.670	2.940	3.190
1.368	1.368	1.493	1.490	1.618	1.615	1.740	1.865	1.990	2.115	2.365	2.615	2.865	3.115
2.500	3.000	2.750	3.250	3.000	3.500	3.750	4.000	4.250	4.500	4.750	5.000	5.250	5.500
2.530	3.030	2.780	3.295	3.030	3.545	3.795	4.045	4.295	4.545	4.795	5.045	5.315	5.565
2.493	2.993	2.743	3.240	2.993	3.490	3.740	3.990	4.240	4.490	4.740	4.990	5.240	5.490
0.165	0.165	0.165	0.180	0.165	0.180	0.180	0.180	0.180	0.180	0.220	0.238	0.259	0.284
0.192	0.192	0.192	0.213	0.192	0.213	0.213	0.213	0.213	0.213	0.248	0.280	0.310	0.327
0.136	0.136	0.136	0.153	0.136	0.153	0.153	0.153	0.153	0.153	0.193	0.210	0.228	0.249

①,Prefered sizes are for the most part from series previously designated "Standard Plate" and "SAE." Where common sizes existed in the two series, the SAE site is designated "N" (narrow) and the Standard Plate "W" (wide).

Alternative history

ANSI/ASME B 18.21.1 - 2009 ASME 18.21.1 - 2009(R2016)

Similar Standards

1	[ISO] ISO 7091 - 1983	Plain washers- Producte Grade C
2	[DIN] DIN 34815 - 1999	Plastic Plain Washers - Normal Series
3	[DIN EN ISO] DIN EN ISO 7090 - 2000	Plain Washers, Chamfered-Normal Series—Product Grade A
4	[ASME/ANSI] ASME/ANSI B 18.21.1 - 2009	Plain Washers - Type B (ASTM F844)
5	[DIN EN ISO] DIN EN ISO 7091 - 2000	Plain washers - Normal series, Product grade C
6	[ASME/ANSI] ASME/ANSI B 18.21.1 - 2009	Plain Washers - Type A (ASTM F844)
7	[ANSI] ANSI B 18.22.1 - 1965 (R1998)	Type B Plain Washers [Table 2] (ASTM A325 / ANSI 1060)
8	[DIN] DIN 125-2 - 1990	Product Grade A, Washers with a Hardness from 300 HV Designed for use with Hexagon Head Bolts and Nuts
9	[ASME] ASME 18.2.6M - 2012	Hardened Steel Circular and Circular Clipped Washers (ASTM F436M)
10	[DIN] DIN 65209 - 2010	Aerospace series - Washers, countersunk;
11	[DIN] DIN 1441 - 2009	Washers for Clevis Pins - Product Grade C
12	[ISO] ISO 887 - 2000 (R2006)	Plain Washers For Metric Bolts, Screws And Nuts For General Purposes
13	[DIN] DIN 126 - 1990	Product grade C washers designed for use with hexagon head bolts and nuts
14	[ANSI] ANSI B 18.22.1 - 1965 (R1998)	Additional Selected Sizes of Type A Plain Washers [Table 1B] (ASTM A325 / ANSI 1060)
15	[ASME/ANSI] ASME/ANSI B 18.21.1 - 2009	Fender Washers
16	[DIN] DIN 1441 - 1974	Washers Type Coarse For Bolts
17	[ASME] ASME B 18.21.1 - 2009 (R2016)	Plain Washers - Type B (ASTM F844)
18	[ISO] ISO 7090 - 2000	Plain Washers, Chamfered-Normal Series—Product Grade A
19	[DIN EN] DIN EN 28738 - 1992	Plain Washers for Clevis Pins; Product Grade A;
20	[ANSI] ANSI B 18.22M - 1981 (R2010)	Metric Plain Washers (General Purpose)
21	[EN ISO] EN ISO 7089 - 2000	Plain washers - Normal series - Product grade A
22	[ANSI] ANSI B 18.22.1 - 1965 (R1998)	Preferred Sizes of Type A Plain Washers [Table 1A] (ASTM A325 / ANSI 1060)
23	[ISO] ISO 7089 - 2000	Plain Washers—normal Series—product Grade A
24	[DIN] DIN 1441 - 2008	Washers Type Coarse For Bolts
25	[DIN EN ISO] DIN EN ISO 7089 - 2000	Plain washers - Normal series - Product grade A
26	[ISO] ISO 7091 - 2000	Plain Washers-Normal Series—Product Grade C
27	[DIN] DIN 125-1 - 1990	Product Grade A, up to Hardness 250 HV, Primarily For Hexagon Bolts and Nuts
28	[JIS] JIS B 1256 (NCA) - 2008	Normal Plain Washers, Chamfered - Product Grade A
29	[NF] NF E 25-514 - 1987	Plain Washers - Product Grade A
30	[GB] GB /T 5649 - 2008	Flared Couplings—Lockup Washer
31	[BS] BS 3410 (-7) - 1961	Ordinary Black Washers [Table 7]
32	[UNI] UNI 1734	Plain Washers, Chamfered - Product Grade A
33	[JIS] JIS B 1256 (NA) - 2008	Normal Plain Washers - Product Grade A
34	[GB] GB 97 - 1976	Plain Washers
35	[UNI] UNI 1750	Thin Plain Washers, Chamfered
36	[BS] BS 3410 (-1) - 1961	Small bright washers for use with B.A. and American Number size [Table 1]
37	[UNI] UNI 6592 - 1972	Plain Washers
38	[JIS] JIS B 1256 (NC) - 2008	Normal Plain Washers - Product Grade C
39	[GB] GB /T 97.2 - 2002	Plain Washers, Chamfered - Product Grade A
40	[NF] NF E 25-527 - 2000	Plain Washers, Chamfered - Normal Series - Product Grade A
41	[GB] GB /T 97.1 - 2002	Plain Washers - Product Grade A
42	[UNI] UNI 6952	Plain Washers
43	[NF] NF E 25-528 - 2000	Plain Washers - Normal Series - Product Grade C
44	[GB] GB /T 97.1 - 1985	Grade A plain washers
45	[NF] NF E 27-711 - 1982	Plain Washers
46	[JIS] JIS B 1256 (F) - 1978	Finished Circular Washers
47	[UNI] UNI 6593 - 1997	Plain Washers-Wide Band
48	[GB] GB /T 17116.3 - 2018	Plain Washers
49	[JIS] JIS B 1220 - 2010	Foundation Plain Washers
50	[GB] GB /T 95 - 1985	Plain Washers - Product Grade C
51	[JIS] JIS B 1256 (R) - 1978	Regular Circular Washers
52	[GB] GB /T 95 - 2002	Plain Washers - Product Grade C
53	[NF] NF B 27-711 - 1982	Plain Washers, Chamfered
54	[BS] BS 4320 (A) - 1968	Bright washers - Normal diameter. Metric series - Form A
55	[BS] BS 3410 (-5) - 1961	Medium bright Washers for automobie purposes for use with UNC, UNF, B.S.W. And B.S.F. fasteners
56	[NF] NF E 25-522 - 1999	Plain Washers For Tapping Screw And Washer Assemblies - Normal Series - Product Grade A
57	[NF] NF E 25-513	Plain Washers - M Style
58	[JIS] JIS B 1220 - 2015	Foundation Plain Washers
59	[NF] NF E 25-518 - 1987	Thick Plain Washers For Mechanical Appliations - Product Grade A
60	[BS] BS 4320 (E) - 1968	Black washers - Normal diameter. Metric series - Form E
61	[GB] GB /T 97.2 - 1985	Grade A chamferred plain washers
62	[BS] BS 4320 (B) - 1968	Bright washers - Normal diameter (Light). Metric series - Form B
63	[NF] NF E 25-526 - 2000	Plain Washers - Normal Series - Product Grade A
64	[IS] IS 2016 (Table 2) - 1967	Punched washers, Type A, for hexagonal bolts and screws
65	[KS] KS B 1326 (T2) - 2009	Plain washers
66	[KS] KS B 1326 (T3) - 2009	Plain washers
67	[IS] IS 2016 (Table 3) - 1967	Punched washers, Type B, for round and cheese head screws
68	[IS] IS 2016 (Table 1) - 1967	Machined Washers
69	[KS] KS B 1326 (T1) - 2009	Plain washers
70	[KS] KS B 1326 (T9) - 2021	Plain washers
71	[KS] KS B 1326 (T8) - 2021	Plain Washers - Large Series
72	[KS] KS B 1326 (T7) - 2021	Plain Washers - Small Series
73	[CNS] CNS 5115 - 1980	Plain washers For Bolts—Grade C
74	[CNS] CNS 5114 - 1980	Washers, Type Medium, For Bolts
75	[CNS] CNS 152 - 1994	Plain Washers (Used For Screws That Diameter Between M1 To M20)
76	[AS] AS 1237.1 - 2002	Plain washers for metric bolts, screws and nuts for general purposes - Normal, Product grade A and C
77	[GOST] GOST 9649 - 1978	Steel Washers For Pins, Grade A
78	[GOST] GOST 11371 - 1978	Washers
79	[GOST] GOST 53664 - 2009	washers
80	[SAE] SAE J 2655 - 2015	Fender Washers
81	[SAE] SAE J 2655 - 2015	Plain Washers - Type A
82	[SAE] SAE J 2655 - 2015	Plain Washers - Type B
83	[YJT] YJT 6001	American system washers -SAE