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 35338-106 N/A Bronze 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 35338-125 N/A Monel 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 35338-50 N/A Steel N/A Cadmium ll N/A 5/8 N/A .653 N/A .636 N/A 1.079 N/A .166 N/A .156 N/A .203
MS 35338-69 N/A Steel N/A Phosphate N/A 5/8 N/A .653 N/A .636 N/A 1.079 N/A .166 N/A .156 N/A .203
MS 35338-145 N/A Corrosion Resistant Steel T/300 N/A N/A 5/8 N/A .653 N/A .636 N/A 1.079 N/A .166 N/A .156 N/A .203
MS 35338-145B N/A Corrosion Resistant Steel T/300 N/A Black Oxide N/A 5/8 N/A .653 N/A .636 N/A 1.079 N/A .166 N/A .156 N/A .203
MS 35338-164 N/A Corrosion Resistant Steel T/420 N/A N/A 5/8 N/A .653 N/A .636 N/A 1.079 N/A .166 N/A .156 N/A .203
MS 35338-164B N/A Corrosion Resistant Steel T/420 N/A Black Oxide N/A 5/8 N/A .653 N/A .636 N/A 1.079 N/A .166 N/A .156 N/A .203
MS 35338-107 N/A Bronze N/A Cadmium ll N/A 5/8 N/A .653 N/A .636 N/A 1.079 N/A .166 N/A .156 N/A .203
MS 35338-126 N/A Monel N/A N/A 5/8 N/A .653 N/A .636 N/A 1.079 N/A .166 N/A .156 N/A .203
MS 35338-51 N/A Steel N/A Cadmium ll N/A 3/4 N/A .783 N/A .763 N/A 1.271 N/A .198 N/A .188 N/A .234
MS 35338-70 N/A Steel N/A Phosphate N/A 3/4 N/A .783 N/A .763 N/A 1.271 N/A .198 N/A .188 N/A .234
MS 35338-146 N/A Corrosion Resistant Steel T/300 N/A N/A 3/4 N/A .783 N/A .763 N/A 1.271 N/A .198 N/A .188 N/A .234
MS 35338-146B N/A Corrosion Resistant Steel T/300 N/A Black Oxide N/A 3/4 N/A .783 N/A .763 N/A 1.271 N/A .198 N/A .188 N/A .234
MS 35338-165 N/A Corrosion Resistant Steel T/420 N/A N/A 3/4 N/A .783 N/A .763 N/A 1.271 N/A .198 N/A .188 N/A .234
MS 35338-165B N/A Corrosion Resistant Steel T/420 N/A Black Oxide N/A 3/4 N/A .783 N/A .763 N/A 1.271 N/A .198 N/A .188 N/A .234
MS 35338-108 N/A Bronze N/A Cadmium ll N/A 3/4 N/A .783 N/A .763 N/A 1.271 N/A .198 N/A .188 N/A .234
MS 35338-127 N/A Monel N/A N/A 3/4 N/A .783 N/A .763 N/A 1.271 N/A .198 N/A .188 N/A .234
MS 35338-52 N/A Steel N/A Cadmium ll N/A 7/8 N/A .912 N/A .890 N/A 1.464 N/A .239 N/A .219 N/A .266
MS 35338-71 N/A Steel N/A Phosphate N/A 7/8 N/A .912 N/A .890 N/A 1.464 N/A .239 N/A .219 N/A .266
MS 35338-147 N/A Corrosion Resistant Steel T/300 N/A N/A 7/8 N/A .912 N/A .890 N/A 1.464 N/A .239 N/A .219 N/A .266
MS 35338-147B N/A Corrosion Resistant Steel T/300 N/A Black Oxide N/A 7/8 N/A .912 N/A .890 N/A 1.464 N/A .239 N/A .219 N/A .266
MS 35338-166 N/A Corrosion Resistant Steel T/420 N/A N/A 7/8 N/A .912 N/A .890 N/A 1.464 N/A .239 N/A .219 N/A .266
MS 35338-166B N/A Corrosion Resistant Steel T/420 N/A Black Oxide N/A 7/8 N/A .912 N/A .890 N/A 1.464 N/A .239 N/A .219 N/A .266
MS 35338-109 N/A Bronze N/A Cadmium ll N/A 7/8 N/A .912 N/A .890 N/A 1.464 N/A .239 N/A .219 N/A .266
MS 35338-128 N/A Monel N/A N/A 7/8 N/A .912 N/A .890 N/A 1.464 N/A .239 N/A .219 N/A .266
MS 35338-53 N/A Steel N/A Cadmium ll N/A 1 N/A 1.042 N/A 1.017 N/A 1.661 N/A .270 N/A .250 N/A .297
MS 35338-72 N/A Steel N/A Phosphate N/A 1 N/A 1.042 N/A 1.017 N/A 1.661 N/A .270 N/A .250 N/A .297
MS 35338-148 N/A Corrosion Resistant Steel T/300 N/A N/A 1 N/A 1.042 N/A 1.017 N/A 1.661 N/A .270 N/A .250 N/A .297
MS 35338-148B N/A Corrosion Resistant Steel T/300 N/A Black Oxide N/A 1 N/A 1.042 N/A 1.017 N/A 1.661 N/A .270 N/A .250 N/A .297
MS 35338-167 N/A Corrosion Resistant Steel T/420 N/A N/A 1 N/A 1.042 N/A 1.017 N/A 1.661 N/A .270 N/A .250 N/A .297
MS 35338-167B N/A Corrosion Resistant Steel T/420 N/A Black Oxide N/A 1 N/A 1.042 N/A 1.017 N/A 1.661 N/A .270 N/A .250 N/A .297
MS 35338-110 N/A Bronze N/A Cadmium ll N/A 1 N/A 1.042 N/A 1.017 N/A 1.661 N/A .270 N/A .250 N/A .297
MS 35338-129 N/A Monel N/A N/A 1 N/A 1.042 N/A 1.017 N/A 1.661 N/A .270 N/A .250 N/A .297
MS 35338-54 N/A Steel N/A Cadmium ll N/A 1 1/8 N/A 1.172 N/A 1.144 N/A 1.853 N/A .301 N/A .281 N/A .328
MS 35338-149 N/A Corrosion Resistant Steel T/300 N/A N/A 1 1/8 N/A 1.172 N/A 1.144 N/A 1.853 N/A .301 N/A .281 N/A .328
MS 35338-149B N/A Corrosion Resistant Steel T/300 N/A Black Oxide N/A 1 1/8 N/A 1.172 N/A 1.144 N/A 1.853 N/A .301 N/A .281 N/A .328
MS 35338-168 N/A Corrosion Resistant Steel T/420 N/A N/A 1 1/8 N/A 1.172 N/A 1.144 N/A 1.853 N/A .301 N/A .281 N/A .328
MS 35338-168B N/A Corrosion Resistant Steel T/420 N/A Black Oxide N/A 1 1/8 N/A 1.172 N/A 1.144 N/A 1.853 N/A .301 N/A .281 N/A .328
MS 35338-111 N/A Bronze N/A Cadmium ll N/A 1 1/8 N/A 1.172 N/A 1.144 N/A 1.853 N/A .301 N/A .281 N/A .328
MS 35338-130 N/A Monel N/A N/A 1 1/8 N/A 1.172 N/A 1.144 N/A 1.853 N/A .301 N/A .281 N/A .328
MS 35338-55 N/A Steel N/A Cadmium ll N/A 1 1/4 N/A 1.302 N/A 1.271 N/A 2.045 N/A .332 N/A .312 N/A .359
MS 35338-150 N/A Corrosion Resistant Steel T/300 N/A N/A 1 1/4 N/A 1.302 N/A 1.271 N/A 2.045 N/A .332 N/A .312 N/A .359
MS 35338-150B N/A Corrosion Resistant Steel T/300 N/A Black Oxide N/A 1 1/4 N/A 1.302 N/A 1.271 N/A 2.045 N/A .332 N/A .312 N/A .359
MS 35338-169 N/A Corrosion Resistant Steel T/420 N/A N/A 1 1/4 N/A 1.302 N/A 1.271 N/A 2.045 N/A .332 N/A .312 N/A .359
MS 35338-169B N/A Corrosion Resistant Steel T/420 N/A Black Oxide N/A 1 1/4 N/A 1.302 N/A 1.271 N/A 2.045 N/A .332 N/A .312 N/A .359
MS 35338-112 N/A Bronze N/A Cadmium ll N/A 1 1/4 N/A 1.302 N/A 1.271 N/A 2.045 N/A .332 N/A .312 N/A .359
MS 35338-131 N/A Monel N/A N/A 1 1/4 N/A 1.302 N/A 1.271 N/A 2.045 N/A .332 N/A .312 N/A .359
MS 35338-56 N/A Steel N/A Cadmium ll N/A 1 3/8 N/A 1.432 N/A 1.398 N/A 2.239 N/A .364 N/A .344 N/A .391
MS 35338-151 N/A Corrosion Resistant Steel T/300 N/A N/A 1 3/8 N/A 1.432 N/A 1.398 N/A 2.239 N/A .364 N/A .344 N/A .391
Unit of Measure
1 2 3 4 5