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): November 16, 2004

                             ESCO TECHNOLOGIES INC.
               (Exact Name of Registrant as Specified in Charter)

               Missouri                    1-10596            43-1554045
            (State or Other              (Commission       (I.R.S. Employer
    Jurisdiction of Incorporation)       File Number)     Identification No.)

       8888 Ladue Road, Suite 200, St. Louis, Missouri              63124-2056
           (Address of Principal Executive Offices)                 (Zip Code)

        Registrant's telephone number, including area code: 314-213-7200


Today,  November 16, 2004,  the  Registrant is issuing a press release  (Exhibit
99.1 to this  report)  announcing  its fiscal 2004 fourth  quarter and  year-end
financial and operating results. See Item 7.01, Regulation FD Disclosure below.


Today,  the  Registrant  is issuing a press release  announcing  its fiscal 2004
fourth quarter and year-end financial and operating results.  This press release
is  furnished  herewith as Exhibit  99.1 and will be posted on the  Registrant's
website located at http://www.escotechnologies.com. It can be viewed through the
"Investor  Relations"  page  of the  website  under  the tab  "Press  Releases,"
although the Registrant  reserves the right to discontinue that  availability at
any time.


The press release furnished  herewith contains  financial measures and financial
terms not calculated in accordance with generally accepted accounting principles
in the United  States of America  ("GAAP")  in order to  provide  investors  and
management with an alternative  method for assessing the Registrant's  operating
results  in a manner  that is  focused on the  performance  of the  Registrant's
ongoing  operations.  The  Registrant  has  provided  definitions  below for the
non-GAAP  financial  measures  utilized in the press  release,  together with an
explanation of why management uses these measures,  and why management  believes
that  these  non-GAAP  financial  measures  are useful to  investors.  The press
release uses the non-GAAP  financial  measures of  "operational"  net  earnings,
earnings per share and results of operations,  as well as "EBIT from  continuing
operations,"  "EBIT  margin,"  "operational"  EBIT margin,  "free cash flow from
continuing operations" and Filtration segment "operational" EBIT.

The  Registrant  defines  "operational"  net earnings,  earnings per share,  and
results of  operations  as net  earnings,  earnings  per share,  and  results of
operations in accordance  with GAAP,  except for the exclusion of (i) exit costs
and severance  charges  related to the shutdown and relocation of the Filtration
segment  Puerto Rico  facility,  (ii) asset  impairment  charges  related to the
Filtration  segment Puerto Rico facility and Test segment U.K.  facility,  (iii)
severance  charges  related to the Test  segment U.K.  facility,  (iv) gain from
settlement of patent  litigation  related to the Filtration  segment,  (v) costs
resulting from the Management  Transition  Agreement  between the Registrant and
its  former  Chairman,  (vi)  the  charge  resulting  from  an  equipment  lease
termination related to the Whatman Hemasure contract dispute, (vii) the interest
rate swap charge,  (viii) the cumulative  effect of accounting charge related to
the synthetic lease  obligation,  (ix) gain on the sale of Rantec Power Systems,
Inc.,  which was divested and is shown as  "discontinued  operations"  in fiscal
2003 and (x) the results of operations from the MicroSep  businesses  which were
divested in fiscal  2004 and are shown as  "discontinued  operations"  in fiscal
2004 and 2003. The Registrant  defines  "operational" EBIT margin as EBIT margin
(defined below) with the foregoing exclusions.  The Registrant's management uses
these "operational"  results in evaluating the measures of continuing operations
of the Registrant  and believes that this  information  provides  investors with
additional  insight  into the period over period  financial  performance  of the

The Registrant  defines "EBIT from  continuing  operations"  as earnings  before
interest and taxes. The Registrant defines "EBIT margin" as EBIT from continuing
operations as a percent of net sales. The Registrant's  management evaluates the
performance of its operating  segments based on EBIT from continuing  operations
and EBIT margin,  and believes  that EBIT from  continuing  operations  and EBIT
margin are useful to investors to demonstrate the operational  profitability  of
the Registrant's  business segments by excluding  interest and taxes,  which are
generally  accounted for across the entire  Registrant on a consolidated  basis.
EBIT from  continuing  operations is also one of the measures used by management
in  determining   resource  allocations  within  the  Registrant  and  incentive

The Registrant defines "Free cash flow from continuing  operations" as "Net cash
provided  by   operating   activities-continuing   operations"   less   "Capital
expenditures-continuing  operations." The Registrant's  management believes that
free cash flow from continuing  operations is useful to investors and management
as a supplemental  financial  measurement in the evaluation of the  Registrant's
business and  believes  that free cash flow may provide  additional  information
with  respect  to the  Registrant's  ability to meet its  future  debt  service,
capital expenditures and working capital  requirements.  Free cash flow can also
be reinvested in the Registrant for future growth.

The Registrant defines  Filtration  segment  "operational" EBIT as segment EBIT,
excluding  the costs  related to the shutdown of the Puerto Rico  facility,  the
gain from settlement of the patent litigation, and the Whatman Hemasure charge.

The  presentation of the  information  described above is intended to supplement
investors'   understanding  of  the  Registrant's  operating  performance.   The
Registrant's  non-GAAP  financial  measures  may  not  be  comparable  to  other
companies' non-GAAP financial performance measures.  Furthermore, these measures
are not  intended  to replace net  earnings,  cash  flows,  financial  position,
comprehensive  income  (loss),  or any other measure as determined in accordance
with GAAP.


(c)  Exhibits

Exhibit No.       Description of Exhibit

    99.1          Press Release dated November 16, 2004


The information  contained in this report,  including Exhibit 99.1, shall not be
deemed to be "filed" for purposes of Section 18 of the  Securities  Exchange Act
of 1934 as amended  ("Exchange Act") or otherwise  subject to the liabilities of
that section,  unless the Registrant  incorporates it by reference into a filing
under the Securities Act of 1933 as amended or the Exchange Act.


     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 hereunto duly authorized.

                                                       ESCO TECHNOLOGIES INC.

Dated:  November 16, 2004                         By:    /s/ G.E. Muenster
                                                         G.E. Muenster
                                                         Vice President and
                                                    Chief Financial Officer

                                  EXHIBIT INDEX

Exhibit No.                         Description of Exhibit

    99.1          Press release dated November 16, 2004