Washington, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT

                       Pursuant to Section 13 or 15(d) of
                       The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  September 10, 2002

                         MINE SAFETY APPLIANCES COMPANY
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             (Exact name of registrant as specified in its charter)

        Pennsylvania                       0-2504                25-0668780
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(State or other jurisdiction of        (Commission              (IRS Employer
 incorporation or organization)        File Number)          Identification No.)

           121 Gamma Drive
           RIDC Industrial Park
           O'Hara Township
           Pittsburgh, Pennsylvania                          15238
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     (Address of principal executive offices)             (Zip Code)

Registrant's telephone number, including area code: 412-967-3000

Item 7.  Financial Statements and Exhibits

              All exhibits are furnished pursuant to Item 9.

Exhibit Number

        99.1     Press Release

Item 9. Regulation FD Disclosure

On September 10, 2002, the Company issued the press release attached as Exhibit


Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.

                             MINE SAFETY APPLIANCES COMPANY

Date: September 10, 2002             By   S/Dennis L. Zeitler
                                     Dennis L. Zeitler
                                     Chief Financial Officer

                                  EXHIBIT INDEX

  Number      Description                                 Method of Filing
- ----------   -------------                                ---------------------

   99.1      Press Release dated September 10, 2002        Furnished herewith

FROM:    Ketchum
         Six PPG Place - Pittsburgh, Pa.  15222-5488
         Contact:  Mark Deasy - (412) 456-3843

FOR:     MSA (Mine Safety Appliances Company)
         Ticker:  MSA (AMEX)
         Contact:  Ben DeMaria - (412) 967-3108

                  Thomas Hotopp Announces Retirement from MSA;
            William Lambert Named Successor to Lead MSA North America

         PITTSBURGH, September 10, 2002 - The Board of Directors of Mine Safety
Appliances Co. (Amex: MSA), in a planned management succession, has elected
William M. Lambert to the position of President, MSA North America, effective
January 1, 2003. Mr. Lambert succeeds Thomas B. Hotopp who, after 11 years of
distinguished service with the company, has decided to retire at the end of the
year. In his new position, Mr. Lambert will report to John T. Ryan, III,
chairman and chief executive officer.

         As president of MSA's North American operations, Mr. Lambert will
oversee the company's Safety Products Division, the MSA Safety Works Consumer
Products group, the company's Instrument Division in Cranberry Township, Pa.,
and Callery Chemical Co., Evans City, Pa.

         "Tom Hotopp has made a substantial contribution to MSA in successfully
guiding us through challenging times in which we had to deal with enormous
changes in our markets, our industry and the general economy in North America,"
Mr. Ryan said. "His leadership, knowledge and focus on the principles and
processes of Total Quality Management were major factors in the company's
success in overcoming numerous challenges. An important aspect of



Tom's efforts has been to develop a strong team and good successor. In Bill
Lambert, the board has elected a person well suited to assume Tom's
responsibilities. Bill's outstanding achievements at MSA over the past 21 years
give me great confidence in his ability to advance the company's performance in
North America consistent with our mission."

         Since joining MSA as a Design Engineer, Mr. Lambert has served in a
variety of capacities, including Product Line Manager for air-line respirators,
Nuclear Industry Specialist, Project Engineer for self-contained breathing
apparatus (SCBA) development, Director of Marketing for safety products and Vice
President/General Manager of the Safety Products Division.

         One of Mr. Lambert's career highlights at MSA was the development of
the patented Quick-Fill(R) System, an accessory for MSA Air Masks that allows
firefighters to quickly replenish their air supplies in emergency or routine-use
situations. In fact, he was honored for his contributions to firefighter safety
by Design News magazine as the publication's 2002 "Special Achievement Award"

         Mr. Lambert received a master's degree in industrial administration
from Carnegie Mellon University in 1990. He earned his bachelor's degree in
mechanical engineering from Penn State University in 1980. A registered
professional engineer in Pennsylvania, Lambert is on the board of directors of
the Pittsburgh Civic Light Opera, the International Safety Equipment
Association, and is secretary for the National Fire Protection Association's
technical correlating committee on Fire and Emergency Services Protective
Clothing and Equipment.



         Established in 1914, MSA is the world's leading provider of quality
products and services that protect people's health, safety and the environment.
The company has annual sales of about $550 million. MSA products are available
in more than 140 countries and are supported globally by 27 international MSA

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Note to local Editors:  Mr. Lambert and his family reside in Cranberry Township.