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Flat Washers
Unit of Measure
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Item #

Material

Finish

Screw Size

Nominal I.D.

Nominal O.D.

Thickness

NAS 620-0 N/A Steel N/A Cadmium N/A 0 N/A .063 N/A .099 N/A .016
NAS 620-C0 N/A Corrosion Resistant Steel N/A N/A 0 N/A .063 N/A .099 N/A .016
NAS 620-B0 N/A Brass N/A Cadmium N/A 0 N/A .063 N/A .099 N/A .016
NAS 620-A0 N/A Aluminum N/A Plain N/A 0 N/A .063 N/A .099 N/A .016
NAS 620-2 N/A Steel N/A Cadmium N/A 1, 2 N/A .089 N/A .149 N/A .016
NAS 620-C2 N/A Corrosion Resistant Steel N/A N/A 1, 2 N/A .089 N/A .149 N/A .016
NAS 620-B2 N/A Brass N/A Cadmium N/A 1, 2 N/A .089 N/A .149 N/A .016
NAS 620-A2 N/A Aluminum N/A Plain N/A 1, 2 N/A .089 N/A .149 N/A .016
NAS 620-3L N/A Steel N/A Cadmium N/A 3 N/A .102 N/A .180 N/A .016
NAS 620-C3L N/A Corrosion Resistant Steel N/A N/A 3 N/A .102 N/A .180 N/A .016
NAS 620-B3L N/A Brass N/A Cadmium N/A 3 N/A .102 N/A .180 N/A .016
NAS 620-A3L N/A Aluminum N/A Plain N/A 3 N/A .102 N/A .180 N/A .016
NAS 620-3 N/A Steel N/A Cadmium N/A 3 N/A .102 N/A .180 N/A .032
NAS 620-C3 N/A Corrosion Resistant Steel N/A N/A 3 N/A .102 N/A .180 N/A .032
NAS 620-B3 N/A Brass N/A Cadmium N/A 3 N/A .102 N/A .180 N/A .032
NAS 620-A3 N/A Aluminum N/A Plain N/A 3 N/A .102 N/A .180 N/A .032
NAS 620-4L N/A Steel N/A Cadmium N/A 4 N/A .115 N/A .209 N/A .016
NAS 620-C4L N/A Corrosion Resistant Steel N/A N/A 4 N/A .115 N/A .209 N/A .016
NAS 620-B4L N/A Brass N/A Cadmium N/A 4 N/A .115 N/A .209 N/A .016
NAS 620-A4L N/A Aluminum N/A Plain N/A 4 N/A .115 N/A .209 N/A .016
NAS 620-4 N/A Steel N/A Cadmium N/A 4 N/A .115 N/A .209 N/A .032
NAS 620-C4 N/A Corrosion Resistant Steel N/A N/A 4 N/A .115 N/A .209 N/A .032
NAS 620-B4 N/A Brass N/A Cadmium N/A 4 N/A .115 N/A .209 N/A .032
NAS 620-A4 N/A Aluminum N/A Plain N/A 4 N/A .115 N/A .209 N/A .032
MS 45901-1 N/A Brass N/A Silver Tin N/A 4 N/A .125 N/A .312 N/A .032
NAS 620-5L N/A Steel N/A Cadmium N/A 5 N/A .128 N/A .238 N/A .016
NAS 620-C5L N/A Corrosion Resistant Steel N/A N/A 5 N/A .128 N/A .238 N/A .016
NAS 620-B5L N/A Brass N/A Cadmium N/A 5 N/A .128 N/A .238 N/A .016
NAS 620-A5L N/A Aluminum N/A Plain N/A 5 N/A .128 N/A .238 N/A .016
NAS 620-5 N/A Steel N/A Cadmium N/A 5 N/A .128 N/A .238 N/A .032
NAS 620-C5 N/A Corrosion Resistant Steel N/A N/A 5 N/A .128 N/A .238 N/A .032
NAS 620-B5 N/A Brass N/A Cadmium N/A 5 N/A .128 N/A .238 N/A .032
NAS 620-A5 N/A Aluminum N/A Plain N/A 5 N/A .128 N/A .238 N/A .032
NAS 620-6L N/A Steel N/A Cadmium N/A 6 N/A .143 N/A .267 N/A .016
NAS 620-C6L N/A Corrosion Resistant Steel N/A N/A 6 N/A .143 N/A .267 N/A .016
NAS 620-B6L N/A Brass N/A Cadmium N/A 6 N/A .143 N/A .267 N/A .016
NAS 620-A6L N/A Aluminum N/A Plain N/A 6 N/A .143 N/A .267 N/A .016
NAS 620-6 N/A Steel N/A Cadmium N/A 6 N/A .143 N/A .267 N/A .032
NAS 620-C6 N/A Corrosion Resistant Steel N/A N/A 6 N/A .143 N/A .267 N/A .032
NAS 620-B6 N/A Brass N/A Cadmium N/A 6 N/A .143 N/A .267 N/A .032
NAS 620-A6 N/A Aluminum N/A Plain N/A 6 N/A .143 N/A .267 N/A .032
MS 45901-2 N/A Brass N/A Silver Tin N/A 6 N/A .149 N/A .375 N/A .032
NAS 620-8L N/A Steel N/A Cadmium N/A 8 N/A .169 N/A .304 N/A .016
NAS 620-C8L N/A Corrosion Resistant Steel N/A N/A 8 N/A .169 N/A .304 N/A .016
NAS 620-B8L N/A Brass N/A Cadmium N/A 8 N/A .169 N/A .304 N/A .016
NAS 620-A8L N/A Aluminum N/A Plain N/A 8 N/A .169 N/A .304 N/A .016
NAS 620-8 N/A Steel N/A Cadmium N/A 8 N/A .169 N/A .304 N/A .032
NAS 620-C8 N/A Corrosion Resistant Steel N/A N/A 8 N/A .169 N/A .304 N/A .032
NAS 620-B8 N/A Brass N/A Cadmium N/A 8 N/A .169 N/A .304 N/A .032
NAS 620-A8 N/A Aluminum N/A Plain N/A 8 N/A .169 N/A .304 N/A .032
MS 45901-3 N/A Brass N/A Silver Tin N/A 8 N/A .174 N/A .375 N/A .032
NAS 620-10L N/A Steel N/A Cadmium N/A 10 N/A .195 N/A .354 N/A .032
NAS 620-C10L N/A Corrosion Resistant Steel N/A N/A 10 N/A .195 N/A .354 N/A .032
NAS 620-B10L N/A Brass N/A Cadmium N/A 10 N/A .195 N/A .354 N/A .032
NAS 620-A10L N/A Aluminum N/A Plain N/A 10 N/A .195 N/A .354 N/A .032
NAS 620-10 N/A Steel N/A Cadmium N/A 10 N/A .195 N/A .354 N/A .063
NAS 620-C10 N/A Corrosion Resistant Steel N/A N/A 10 N/A .195 N/A .354 N/A .063
NAS 620-B10 N/A Brass N/A Cadmium N/A 10 N/A .195 N/A .354 N/A .063
NAS 620-A10 N/A Aluminum N/A Plain N/A 10 N/A .195 N/A .354 N/A .063
MS 45901-4 N/A Brass N/A Silver Tin N/A 10 N/A .203 N/A .438 N/A .032
NAS 620-416L N/A Steel N/A Cadmium N/A 1/4 N/A .255 N/A .468 N/A .032
NAS 620-C416L N/A Corrosion Resistant Steel N/A N/A 1/4 N/A .255 N/A .468 N/A .032
NAS 620-B416L N/A Brass N/A Cadmium N/A 1/4 N/A .255 N/A .468 N/A .032
NAS 620-A416L N/A Aluminum N/A Plain N/A 1/4 N/A .255 N/A .468 N/A .032
NAS 620-416 N/A Steel N/A Cadmium N/A 1/4 N/A .255 N/A .468 N/A .063
NAS 620-C416 N/A Corrosion Resistant Steel N/A N/A 1/4 N/A .255 N/A .468 N/A .063
NAS 620-B416 N/A Brass N/A Cadmium N/A 1/4 N/A .255 N/A .468 N/A .063
NAS 620-A416 N/A Aluminum N/A Plain N/A 1/4 N/A .255 N/A .468 N/A .063
MS 45901-5 N/A Brass N/A Silver Tin N/A 1/4 N/A .265 N/A .500 N/A .064
MS 45901-6 N/A Brass N/A Silver Tin N/A 5/16 N/A .328 N/A .562 N/A .064
MS 45901-7 N/A Brass N/A Silver Tin N/A 3/8 N/A .390 N/A .625 N/A .064
MS 45901-8 N/A Brass N/A Silver Tin N/A 1/2 N/A .515 N/A .875 N/A .064
AN 960-2L N/A Steel N/A Cadmium ll N/A 2 N/A .099 N/A .250 N/A .016
AN 960-C2L N/A Corrosion Resistant Steel N/A Passivated N/A 2 N/A .099 N/A .250 N/A .016
AN 960-XC2L N/A Corrosion Resistant Steel N/A Black Oxide N/A 2 N/A .099 N/A .250 N/A .016
AN 960-D2L N/A Aluminum N/A Plain N/A 2 N/A .099 N/A .250 N/A .016
AN 960-PD2L N/A Aluminum N/A Anodize Plated Chemical Surface Treatment N/A 2 N/A .099 N/A .250 N/A .016
AN 960-KD2L N/A Aluminum N/A Anodize Plated N/A 2 N/A .099 N/A .250 N/A .016
AN 960-JD2L N/A Aluminum N/A Chemical Surface Treatment N/A 2 N/A .099 N/A .250 N/A .016
AN 960-2 N/A Steel N/A Cadmium ll N/A 2 N/A .099 N/A .250 N/A .032
AN 960-C2 N/A Corrosion Resistant Steel N/A Passivated N/A 2 N/A .099 N/A .250 N/A .032
AN 960-XC2 N/A Corrosion Resistant Steel N/A Black Oxide N/A 2 N/A .099 N/A .250 N/A .032
AN 960-B2 N/A Brass N/A Plain N/A 2 N/A .099 N/A .250 N/A .032
AN 960-D2 N/A Aluminum N/A Plain N/A 2 N/A .099 N/A .250 N/A .032
AN 960-PD2 N/A Aluminum N/A Anodize Plated Chemical Surface Treatment N/A 2 N/A .099 N/A .250 N/A .032
AN 960-KD2 N/A Aluminum N/A Anodize Plated N/A 2 N/A .099 N/A .250 N/A .032
AN 960-JD2 N/A Aluminum N/A Chemical Surface Treatment N/A 2 N/A .099 N/A .250 N/A .032
AN 960-3L N/A Steel N/A Cadmium ll N/A 3 N/A .105 N/A .250 N/A .016
AN 960-C3L N/A Corrosion Resistant Steel N/A Passivated N/A 3 N/A .105 N/A .250 N/A .016
AN 960-XC3L N/A Corrosion Resistant Steel N/A Black Oxide N/A 3 N/A .105 N/A .250 N/A .016
AN 960-D3L N/A Aluminum N/A Plain N/A 3 N/A .105 N/A .250 N/A .016
AN 960-PD3L N/A Aluminum N/A Anodize Plated Chemical Surface Treatment N/A 3 N/A .105 N/A .250 N/A .016
AN 960-KD3L N/A Aluminum N/A Anodize Plated N/A 3 N/A .105 N/A .250 N/A .016
AN 960-JD3L N/A Aluminum N/A Chemical Surface Treatment N/A 3 N/A .105 N/A .250 N/A .016
AN 960-3 N/A Steel N/A Cadmium ll N/A 3 N/A .105 N/A .250 N/A .032
AN 960-C3 N/A Corrosion Resistant Steel N/A Passivated N/A 3 N/A .105 N/A .250 N/A .032
AN 960-XC3 N/A Corrosion Resistant Steel N/A Black Oxide N/A 3 N/A .105 N/A .250 N/A .032
AN 960-B3 N/A Brass N/A Plain N/A 3 N/A .105 N/A .250 N/A .032
AN 960-D3 N/A Aluminum N/A Plain N/A 3 N/A .105 N/A .250 N/A .032
AN 960-PD3 N/A Aluminum N/A Anodize Plated Chemical Surface Treatment N/A 3 N/A .105 N/A .250 N/A .032
Unit of Measure
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