<PAGE>
EXHIBIT 24.1
POWER OF ATTORNEY
(S-8 Registration Statement for 1999 Non-Qualified Stock Option Plan)
KNOW ALL MEN BY THESE PRESENTS, that the undersigned, an officer and/or
director of PRECISION CASTPARTS CORP. does hereby constitute and appoint William
C. McCormick and William D. Larsson, and each of them, his true and lawful
attorney and agent to do any and all acts and things and to execute in his name
(whether on behalf of Precision Castparts Corp. or as an officer or director of
said Company, or otherwise) any and all instruments which said attorney and
agent may deem necessary or advisable in order to enable Precision Castparts
Corp. to comply with the Securities Act of 1933, as amended, and any
requirements of the Securities and Exchange Commission in respect thereof, in
connection with the registration under the Securities Act of 1933, as amended,
of shares of Common Stock of Precision Castparts Corp. issuable pursuant to the
1999 Non-Qualified Stock Option Plan, including specifically, but without
limitation thereto, power and authority to sign his name (whether on behalf of
Precision Castparts Corp. or as an officer or director of said Company, or
otherwise) to a Registration Statement on Form S-8 and any amendment thereto
(including any post-effective amendment) or application for amendment thereto in
respect to such Common Stock or any exhibits filed therewith; and to file the
same with the Securities and Exchange Commission; and the undersigned does
hereby ratify and confirm all that said attorney and agent shall do or cause to
be done by virtue hereof.
DATED: May 19, 1999
William C. McCormick
---------------------------
William C. McCormick
<PAGE>
EXHIBIT 24.1
POWER OF ATTORNEY
(S-8 Registration Statement for 1999 Non-Qualified Stock Option Plan)
KNOW ALL MEN BY THESE PRESENTS, that the undersigned, an officer and/or
director of PRECISION CASTPARTS CORP. does hereby constitute and appoint William
C. McCormick and William D. Larsson, and each of them, his true and lawful
attorney and agent to do any and all acts and things and to execute in his name
(whether on behalf of Precision Castparts Corp. or as an officer or director of
said Company, or otherwise) any and all instruments which said attorney and
agent may deem necessary or advisable in order to enable Precision Castparts
Corp. to comply with the Securities Act of 1933, as amended, and any
requirements of the Securities and Exchange Commission in respect thereof, in
connection with the registration under the Securities Act of 1933, as amended,
of shares of Common Stock of Precision Castparts Corp. issuable pursuant to the
1999 Non-Qualified Stock Option Plan, including specifically, but without
limitation thereto, power and authority to sign his name (whether on behalf of
Precision Castparts Corp. or as an officer or director of said Company, or
otherwise) to a Registration Statement on Form S-8 and any amendment thereto
(including any post-effective amendment) or application for amendment thereto in
respect to such Common Stock or any exhibits filed therewith; and to file the
same with the Securities and Exchange Commission; and the undersigned does
hereby ratify and confirm all that said attorney and agent shall do or cause to
be done by virtue hereof.
DATED: May 19, 1999
William D. Larsson
----------------------
William D. Larsson
<PAGE>
EXHIBIT 24.1
POWER OF ATTORNEY
(S-8 Registration Statement for 1999 Non-Qualified Stock Option Plan)
KNOW ALL MEN BY THESE PRESENTS, that the undersigned, an officer and/or
director of PRECISION CASTPARTS CORP. does hereby constitute and appoint William
C. McCormick and William D. Larsson, and each of them, his true and lawful
attorney and agent to do any and all acts and things and to execute in his name
(whether on behalf of Precision Castparts Corp. or as an officer or director of
said Company, or otherwise) any and all instruments which said attorney and
agent may deem necessary or advisable in order to enable Precision Castparts
Corp. to comply with the Securities Act of 1933, as amended, and any
requirements of the Securities and Exchange Commission in respect thereof, in
connection with the registration under the Securities Act of 1933, as amended,
of shares of Common Stock of Precision Castparts Corp. issuable pursuant to the
1999 Non-Qualified Stock Option Plan, including specifically, but without
limitation thereto, power and authority to sign his name (whether on behalf of
Precision Castparts Corp. or as an officer or director of said Company, or
otherwise) to a Registration Statement on Form S-8 and any amendment thereto
(including any post-effective amendment) or application for amendment thereto in
respect to such Common Stock or any exhibits filed therewith; and to file the
same with the Securities and Exchange Commission; and the undersigned does
hereby ratify and confirm all that said attorney and agent shall do or cause to
be done by virtue hereof.
DATED: May 19, 1999
Peter R. Bridenbaugh
----------------------
Peter R. Bridenbaugh
<PAGE>
EXHIBIT 24.1
POWER OF ATTORNEY
(S-8 Registration Statement for 1999 Non-Qualified Stock Option Plan)
KNOW ALL MEN BY THESE PRESENTS, that the undersigned, an officer and/or
director of PRECISION CASTPARTS CORP. does hereby constitute and appoint William
C. McCormick and William D. Larsson, and each of them, his true and lawful
attorney and agent to do any and all acts and things and to execute in his name
(whether on behalf of Precision Castparts Corp. or as an officer or director of
said Company, or otherwise) any and all instruments which said attorney and
agent may deem necessary or advisable in order to enable Precision Castparts
Corp. to comply with the Securities Act of 1933, as amended, and any
requirements of the Securities and Exchange Commission in respect thereof, in
connection with the registration under the Securities Act of 1933, as amended,
of shares of Common Stock of Precision Castparts Corp. issuable pursuant to the
1999 Non-Qualified Stock Option Plan, including specifically, but without
limitation thereto, power and authority to sign his name (whether on behalf of
Precision Castparts Corp. or as an officer or director of said Company, or
otherwise) to a Registration Statement on Form S-8 and any amendment thereto
(including any post-effective amendment) or application for amendment thereto in
respect to such Common Stock or any exhibits filed therewith; and to file the
same with the Securities and Exchange Commission; and the undersigned does
hereby ratify and confirm all that said attorney and agent shall do or cause to
be done by virtue hereof.
DATED: May 19, 1999
Dean T. DuCray
------------------------------
Dean T. DuCray
<PAGE>
EXHIBIT 24.1
POWER OF ATTORNEY
(S-8 Registration Statement for 1999 Non-Qualified Stock Option Plan)
KNOW ALL MEN BY THESE PRESENTS, that the undersigned, an officer and/or
director of PRECISION CASTPARTS CORP. does hereby constitute and appoint William
C. McCormick and William D. Larsson, and each of them, his true and lawful
attorney and agent to do any and all acts and things and to execute in his name
(whether on behalf of Precision Castparts Corp. or as an officer or director of
said Company, or otherwise) any and all instruments which said attorney and
agent may deem necessary or advisable in order to enable Precision Castparts
Corp. to comply with the Securities Act of 1933, as amended, and any
requirements of the Securities and Exchange Commission in respect thereof, in
connection with the registration under the Securities Act of 1933, as amended,
of shares of Common Stock of Precision Castparts Corp. issuable pursuant to the
1999 Non-Qualified Stock Option Plan, including specifically, but without
limitation thereto, power and authority to sign his name (whether on behalf of
Precision Castparts Corp. or as an officer or director of said Company, or
otherwise) to a Registration Statement on Form S-8 and any amendment thereto
(including any post-effective amendment) or application for amendment thereto in
respect to such Common Stock or any exhibits filed therewith; and to file the
same with the Securities and Exchange Commission; and the undersigned does
hereby ratify and confirm all that said attorney and agent shall do or cause to
be done by virtue hereof.
DATED: May 19, 1999
Don R. Graber
------------------------------
Don R. Graber
<PAGE>
EXHIBIT 24.1
POWER OF ATTORNEY
(S-8 Registration Statement for 1999 Non-Qualified Stock Option Plan)
KNOW ALL MEN BY THESE PRESENTS, that the undersigned, an officer and/or
director of PRECISION CASTPARTS CORP. does hereby constitute and appoint William
C. McCormick and William D. Larsson, and each of them, his true and lawful
attorney and agent to do any and all acts and things and to execute in his name
(whether on behalf of Precision Castparts Corp. or as an officer or director of
said Company, or otherwise) any and all instruments which said attorney and
agent may deem necessary or advisable in order to enable Precision Castparts
Corp. to comply with the Securities Act of 1933, as amended, and any
requirements of the Securities and Exchange Commission in respect thereof, in
connection with the registration under the Securities Act of 1933, as amended,
of shares of Common Stock of Precision Castparts Corp. issuable pursuant to the
1999 Non-Qualified Stock Option Plan, including specifically, but without
limitation thereto, power and authority to sign his name (whether on behalf of
Precision Castparts Corp. or as an officer or director of said Company, or
otherwise) to a Registration Statement on Form S-8 and any amendment thereto
(including any post-effective amendment) or application for amendment thereto in
respect to such Common Stock or any exhibits filed therewith; and to file the
same with the Securities and Exchange Commission; and the undersigned does
hereby ratify and confirm all that said attorney and agent shall do or cause to
be done by virtue hereof.
DATED: May 19, 1999
Vernon E. Oechsle
----------------------
Vernon E. Oechsle
<PAGE>
EXHIBIT 24.1
POWER OF ATTORNEY
(S-8 Registration Statement for 1999 Non-Qualified Stock Option Plan)
KNOW ALL MEN BY THESE PRESENTS, that the undersigned, an officer and/or
director of PRECISION CASTPARTS CORP. does hereby constitute and appoint William
C. McCormick and William D. Larsson, and each of them, his true and lawful
attorney and agent to do any and all acts and things and to execute in his name
(whether on behalf of Precision Castparts Corp. or as an officer or director of
said Company, or otherwise) any and all instruments which said attorney and
agent may deem necessary or advisable in order to enable Precision Castparts
Corp. to comply with the Securities Act of 1933, as amended, and any
requirements of the Securities and Exchange Commission in respect thereof, in
connection with the registration under the Securities Act of 1933, as amended,
of shares of Common Stock of Precision Castparts Corp. issuable pursuant to the
1999 Non-Qualified Stock Option Plan, including specifically, but without
limitation thereto, power and authority to sign his name (whether on behalf of
Precision Castparts Corp. or as an officer or director of said Company, or
otherwise) to a Registration Statement on Form S-8 and any amendment thereto
(including any post-effective amendment) or application for amendment thereto in
respect to such Common Stock or any exhibits filed therewith; and to file the
same with the Securities and Exchange Commission; and the undersigned does
hereby ratify and confirm all that said attorney and agent shall do or cause to
be done by virtue hereof.
DATED: May 19, 1999
Steven G. Rothmeier
----------------------
Steven G. Rothmeier
