These flat washers are used under hex nuts to provide a smooth bearing surface, as shims to obtain the correct grip length for a bolt and nut assembly, and to adjust the position of AN310 and AN320 castle nuts with respect to drilled cotter pin holes in bolts and clevis pins.

We have listed the most popular items here but we have a very large range of these washers available in various finishes so please enquire if you can’t see what you need!

Cadmium Plated Steel
Suits Size	OD	Thickness	Old AN Number	Part Number	Price
#2	.25	.032	AN960-2	NAS1149FN232P	£0.021
#3	.25	.032	AN960-3	NAS1149FN332P	£0.021
#4-40	.312	.016	AN960-4L	NAS1149FN416P	£0.03
		.032	AN960-4	NAS1149FN432P	£0.0105
#5-40	.438	.042	AN960-5	NAS1149FN542P	£0.0316
#6-32	.375	.016	AN960-6L	NAS1149FN616P	£0.0105
		.032	AN960-6	NAS1149FN632P	£0.0105
#8-32	.375	.016	AN960-8L	NAS1149FN816P	£0.0105
		.032	AN960-8	NAS1149FN832P	£0.0105
#10-32	.438	.032	AN960-10L	NAS1149F0332P	£0.0105
		.063	AN960-10	NAS1149F0363P	£0.021
1/4”	.500	.032	AN960-416L	NAS1149F0432P	£0.021
		.063	AN960-416	NAS1149F0463P	£0.021
5/16”	.562	.032	AN960-516L	NAS1149F0532P	£0.021
		.063	AN960-516	NAS1149F0563P	£0.0421
3/8”	.625	.032	AN960-616L	NAS1149F0632P	£0.021
		.063	AN960-616	NAS1149F0663P	£0.021
7/16”	.750	.032	AN960-716L	NAS1149F0732P	£0.0316
		.063	AN960-716	NAS1149F0763P	£0.06
1/2”	.875	.032	AN960-816L	NAS1149F0832P	£0.0316
		.063	AN960-816	NAS1149F0863P	£0.0421
9/16”	1.062	.032	AN960-916L	NAS1149F0932P	£0.0421
		.063	AN960-916	NAS1149F0963P	£0.17
5/8”	1.188	.032	AN960-1016L	NAS1149F1032P	£0.08
		.063	AN960-1016	NAS1149F1063P	£0.42
3/4”	1.312	.032	AN960-1216L	NAS1149F1232P	£0.06
		.090	AN960-1216	NAS1149F1290P	£0.47
7/8”	1.500	.032	AN960-1416L	NAS1149F1432P	POA
		.090	AN960-1416	NAS1149F1490P	£0.07
1”	1.750	.032	AN960-1616L	NAS1149F1632P	£0.14
		.090	AN960-1616	NAS1149F1690P	POA

Stainless Steel
Suits Size	OD	Thickness	Old AN Number	Part Number	Price
#4-40	.312	.016	AN960C-4L	NAS1149CN416R	£0.0105
		.032	AN960C-4	NAS1149CN432R	£0.021
#5-40	.438	.042	AN960C-5	NAS1149CN542R	£0.021
#6-32	.375	.016	AN960C-6L	NAS1149CN616R	£0.021
		.032	AN960C-6	NAS1149CN632R	£0.021
#8-32	.375	.016	AN960C-8L	NAS1149CN816R	£0.0308
		.032	AN960C-8	NAS1149CN832R	£0.0316
#10-32	.438	.032	AN960C-10L	NAS1149C0332R	£0.021
		.063	AN960C-10	NAS1149C0363R	£0.0316
1/4”	.500	.032	AN960C-416L	NAS1149C0432R	£0.0316
		.063	AN960C-416	NAS1149C0463R	£0.05
5/16”	.562	.032	AN960C-516L	NAS1149C0532R	£0.021
		.063	AN960C-516	NAS1149C0563R	£0.07
3/8”	.625	.032	AN960C-616L	NAS1149C0632R	£0.021
		.063	AN960C-616	NAS1149C0663R	£0.06
7/16”	.750	.032	AN960C-716L	NAS1149C0732R	£0.05
		.063	AN960C-716	NAS1149C0763R	£0.06
1/2”	.875	.032	AN960C-816L	NAS1149C0832R	£0.06
		.063	AN960C-816	NAS1149C0863R	£0.08
9/16”	1.062	.032	AN960C-916L	NAS1149C0932R	£0.05
		.063	AN960C-916	NAS1149C0963R	£0.08