Mil-Spec Fasteners, Corp.
Mil-Spec Fasteners, Corp.
Address: 314 Hanover Pike,
Hampstead, MD 21074
Toll Free: 800-638-1640
Phone: 410-239-7761
Fax: 410-239-7353
Email: sales@milspecfasteners.com
Website: www.milspecfasteners.com
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Split-Helical Lock Washers
Unit of Measure
1 2 3 4 5 

Item #

Material

Finish

Screw Size

Maximum I.D.

Minimum I.D.

Maximum O.D.

Max. Thickness

Min. Thickness

Min. Width

MS 35338-157 N/A Corrosion Resistant Steel T/420 N/A N/A 10 N/A .202 N/A .194 N/A .334 N/A .053 N/A .047 N/A .062
MS 35338-157B N/A Corrosion Resistant Steel T/420 N/A Black Oxide N/A 10 N/A .202 N/A .194 N/A .334 N/A .053 N/A .047 N/A .062
MS 35338-100 N/A Bronze N/A Cadmium ll N/A 10 N/A .202 N/A .194 N/A .334 N/A .053 N/A .047 N/A .062
MS 35338-119 N/A Monel N/A N/A 10 N/A .202 N/A .194 N/A .334 N/A .053 N/A .047 N/A .062
MS 35338-44 N/A Steel N/A Cadmium ll N/A 1/4 N/A .263 N/A .255 N/A .489 N/A .072 N/A .062 N/A .109
MS 35338-63 N/A Steel N/A Phosphate N/A 1/4 N/A .263 N/A .255 N/A .489 N/A .072 N/A .062 N/A .109
MS 35338-139 N/A Corrosion Resistant Steel T/300 N/A N/A 1/4 N/A .263 N/A .255 N/A .489 N/A .072 N/A .062 N/A .109
MS 35338-139B N/A Corrosion Resistant Steel T/300 N/A Black Oxide N/A 1/4 N/A .263 N/A .255 N/A .489 N/A .072 N/A .062 N/A .109
MS 35338-158 N/A Corrosion Resistant Steel T/420 N/A N/A 1/4 N/A .263 N/A .255 N/A .489 N/A .072 N/A .062 N/A .109
MS 35338-158B N/A Corrosion Resistant Steel T/420 N/A Black Oxide N/A 1/4 N/A .263 N/A .255 N/A .489 N/A .072 N/A .062 N/A .109
MS 35338-101 N/A Bronze N/A Cadmium ll N/A 1/4 N/A .263 N/A .255 N/A .489 N/A .072 N/A .062 N/A .109
MS 35338-120 N/A Monel N/A N/A 1/4 N/A .263 N/A .255 N/A .489 N/A .072 N/A .062 N/A .109
MS 35338-45 N/A Steel N/A Cadmium ll N/A 5/16 N/A .328 N/A .318 N/A .586 N/A .088 N/A .078 N/A .125
MS 35338-64 N/A Steel N/A Phosphate N/A 5/16 N/A .328 N/A .318 N/A .586 N/A .088 N/A .078 N/A .125
MS 35338-140 N/A Corrosion Resistant Steel T/300 N/A N/A 5/16 N/A .328 N/A .318 N/A .586 N/A .088 N/A .078 N/A .125
MS 35338-140B N/A Corrosion Resistant Steel T/300 N/A Black Oxide N/A 5/16 N/A .328 N/A .318 N/A .586 N/A .088 N/A .078 N/A .125
MS 35338-159 N/A Corrosion Resistant Steel T/420 N/A N/A 5/16 N/A .328 N/A .318 N/A .586 N/A .088 N/A .078 N/A .125
MS 35338-159B N/A Corrosion Resistant Steel T/420 N/A Black Oxide N/A 5/16 N/A .328 N/A .318 N/A .586 N/A .088 N/A .078 N/A .125
MS 35338-102 N/A Bronze N/A Cadmium ll N/A 5/16 N/A .328 N/A .318 N/A .586 N/A .088 N/A .078 N/A .125
MS 35338-121 N/A Monel N/A N/A 5/16 N/A .328 N/A .318 N/A .586 N/A .088 N/A .078 N/A .125
MS 35338-46 N/A Steel N/A Cadmium ll N/A 3/8 N/A .393 N/A .382 N/A .683 N/A .104 N/A .094 N/A .141
MS 35338-65 N/A Steel N/A Phosphate N/A 3/8 N/A .393 N/A .382 N/A .683 N/A .104 N/A .094 N/A .141
MS 35338-141 N/A Corrosion Resistant Steel T/300 N/A N/A 3/8 N/A .393 N/A .382 N/A .683 N/A .104 N/A .094 N/A .141
MS 35338-141B N/A Corrosion Resistant Steel T/300 N/A Black Oxide N/A 3/8 N/A .393 N/A .382 N/A .683 N/A .104 N/A .094 N/A .141
MS 35338-160 N/A Corrosion Resistant Steel T/420 N/A N/A 3/8 N/A .393 N/A .382 N/A .683 N/A .104 N/A .094 N/A .141
MS 35338-160B N/A Corrosion Resistant Steel T/420 N/A Black Oxide N/A 3/8 N/A .393 N/A .382 N/A .683 N/A .104 N/A .094 N/A .141
MS 35338-103 N/A Bronze N/A Cadmium ll N/A 3/8 N/A .393 N/A .382 N/A .683 N/A .104 N/A .094 N/A .141
MS 35338-122 N/A Monel N/A N/A 3/8 N/A .393 N/A .382 N/A .683 N/A .104 N/A .094 N/A .141
MS 35338-47 N/A Steel N/A Cadmium ll N/A 7/16 N/A .459 N/A .446 N/A .779 N/A .119 N/A .109 N/A .156
MS 35338-66 N/A Steel N/A Phosphate N/A 7/16 N/A .459 N/A .446 N/A .779 N/A .119 N/A .109 N/A .156
MS 35338-142 N/A Corrosion Resistant Steel T/300 N/A N/A 7/16 N/A .459 N/A .446 N/A .779 N/A .119 N/A .109 N/A .156
MS 35338-142B N/A Corrosion Resistant Steel T/300 N/A Black Oxide N/A 7/16 N/A .459 N/A .446 N/A .779 N/A .119 N/A .109 N/A .156
MS 35338-161 N/A Corrosion Resistant Steel T/420 N/A N/A 7/16 N/A .459 N/A .446 N/A .779 N/A .119 N/A .109 N/A .156
MS 35338-161B N/A Corrosion Resistant Steel T/420 N/A Black Oxide N/A 7/16 N/A .459 N/A .446 N/A .779 N/A .119 N/A .109 N/A .156
MS 35338-104 N/A Bronze N/A Cadmium ll N/A 7/16 N/A .459 N/A .446 N/A .779 N/A .119 N/A .109 N/A .156
MS 35338-123 N/A Monel N/A N/A 7/16 N/A .459 N/A .446 N/A .779 N/A .119 N/A .109 N/A .156
MS 35338-48 N/A Steel N/A Cadmium ll N/A 1/2 N/A .523 N/A .509 N/A .873 N/A .135 N/A .125 N/A .171
MS 35338-67 N/A Steel N/A Phosphate N/A 1/2 N/A .523 N/A .509 N/A .873 N/A .135 N/A .125 N/A .171
MS 35338-143 N/A Corrosion Resistant Steel T/300 N/A N/A 1/2 N/A .523 N/A .509 N/A .873 N/A .135 N/A .125 N/A .171
MS 35338-143B N/A Corrosion Resistant Steel T/300 N/A Black Oxide N/A 1/2 N/A .523 N/A .509 N/A .873 N/A .135 N/A .125 N/A .171
MS 35338-162 N/A Corrosion Resistant Steel T/420 N/A N/A 1/2 N/A .523 N/A .509 N/A .873 N/A .135 N/A .125 N/A .171
MS 35338-162B N/A Corrosion Resistant Steel T/420 N/A Black Oxide N/A 1/2 N/A .523 N/A .509 N/A .873 N/A .135 N/A .125 N/A .171
MS 35338-105 N/A Bronze N/A Cadmium ll N/A 1/2 N/A .523 N/A .509 N/A .873 N/A .135 N/A .125 N/A .171
MS 35338-124 N/A Monel N/A N/A 1/2 N/A .523 N/A .509 N/A .873 N/A .135 N/A .125 N/A .171
MS 35338-49 N/A Steel N/A Cadmium ll N/A 9/16 N/A .587 N/A .572 N/A .971 N/A .151 N/A .141 N/A .188
MS 35338-68 N/A Steel N/A Phosphate N/A 9/16 N/A .587 N/A .572 N/A .971 N/A .151 N/A .141 N/A .188
MS 35338-144 N/A Corrosion Resistant Steel T/300 N/A N/A 9/16 N/A .587 N/A .572 N/A .971 N/A .151 N/A .141 N/A .188
MS 35338-144B N/A Corrosion Resistant Steel T/300 N/A Black Oxide N/A 9/16 N/A .587 N/A .572 N/A .971 N/A .151 N/A .141 N/A .188
MS 35338-163 N/A Corrosion Resistant Steel T/420 N/A N/A 9/16 N/A .587 N/A .572 N/A .971 N/A .151 N/A .141 N/A .188
MS 35338-163B N/A Corrosion Resistant Steel T/420 N/A Black Oxide N/A 9/16 N/A .587 N/A .572 N/A .971 N/A .151 N/A .141 N/A .188
Unit of Measure
1 2 3 4 5