MIL-PRF-1149D

Abstract

This specification covers vulcanized synthetic rubber gasket materials of nominal 50 and 65 durometer hardness. <br>Gasket materials are furnished in the following types and classes, as specified (see <a>6.2</a>). <br>Type I - Nominal 50 durometer hardness <br>Class 1 - Oil resistant (chloroprene polymer) <br>Class 2 - Non-oil resistant (styrene-butadiene copolymer) <br>Class 3 - Phosphate ester resistant (isoprene-isobutylene copolymer) <br>Class 5 - Fuel resistant (acrylonitrile-butadiene copolymer) <br>Type II - Nominal 65 durometer hardness <br>Class 1 - Oil resistant (chloroprene polymer) <br>Class 2 - Non-oil resistant (styrene-butadiene copolymer) <br>Class 3 - Phosphate ester resistant (isoprene-isobutylene copolymer) <br>Class 5 - Fuel resistant (acrylonitrile-butadiene copolymer) <strong>Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, SEA 03R42, Naval Sea Systems Command, 2531 Jefferson Davis Hwy, Arlington, VA 22242-5160 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter.</strong> <b><u>Intended Use:</u></b> This material is intended for general gasket use but is not intended for use as a gasket in hatches, air ports, or watertight and airtight doors. <br>