PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8803Servohydraulic Fati

Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Instron, a Division of Illinois Tool Works, Inc. · NSN 6635-01-643-5878 · FSC 6635 · No Item Name Available
Verified by PartsTable
NSN 6635-01-643-5878 — this item is cataloged by the U.S. Government under National Stock Number 6635-01-643-5878. Primary manufacturer part number: 8803.
Features
  • Servohydraulic Fati — FSC 6635
  • 1 verified cross-reference
  • Primary manufacturer: Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Instron, a Division of Illinois Tool Works, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Servohydraulic Fati, cataloged under National Stock Number 6635-01-643-5878, is classified within Federal Supply Class 6635 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Instron, a Division of Illinois Tool Works, Inc.. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameServohydraulic Fati
FSC / FSG6635 — No Item Name Available (FSG 66)
ManufacturersIllinois Tool Works Inc Dba Illinois Tool Works Inc Div Instron, a Division of Illinois Tool Works, Inc. (CAGE 80160)
Technical Specifications
ParameterValue
NSN6635-01-643-5878
Primary Part Number8803
Item NameServohydraulic Fati
FSC / FSG6635 / 66 — No Item Name Available
ManufacturerIllinois Tool Works Inc Dba Illinois Tool Works Inc Div Instron, a Division of Illinois Tool Works, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5930-00-188-10263953 INTERCHANGEABLE
Switch,toggle
Bryant Electric
6105-01-136-4472 INTERCHANGEABLE
Motor,direct Current
5445-01-209-47448803 INTERCHANGEABLE
Tower Support Group
Jaquith Industries Inc
3040-01-339-85688803 INTERCHANGEABLE
Lining,friction
Smatco Industries Inc
6515-01-342-87948803 INTERCHANGEABLE
Stimulator,muscle
Electronic Research Devices Corp.
6695-01-423-83548803 INTERCHANGEABLE
Calibrator,special
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
6625-01-454-02338803 INTERCHANGEABLE
Voltmeter
Charles Industries, Llc Div Telecom
6532-01-547-47438803 INTERCHANGEABLE
Mask,face,aseptic
Covidien Sales Llc Dba Covidien Sales
4820-01-667-94068803 INTERCHANGEABLE
Parts Kit,ball Valve
Akron Brass Company
Cross-Reference Index
Part NumberManufacturer
8803 PRIMARY Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Instron, a Division of Illinois Tool Works, Inc. (USA)
Related Parts
5930-00-188-1026INTERCHANGEABLE
SWITCH,TOGGLE
3953
6105-01-136-4472INTERCHANGEABLE
MOTOR,DIRECT CURRENT
5445-01-209-4744INTERCHANGEABLE
TOWER SUPPORT GROUP
8803
3040-01-339-8568INTERCHANGEABLE
LINING,FRICTION
8803
6515-01-342-8794INTERCHANGEABLE
STIMULATOR,MUSCLE
8803
6695-01-423-8354INTERCHANGEABLE
CALIBRATOR,SPECIAL
8803
6625-01-454-0233INTERCHANGEABLE
VOLTMETER
8803
6532-01-547-4743INTERCHANGEABLE
MASK,FACE,ASEPTIC
8803
4820-01-667-9406INTERCHANGEABLE
PARTS KIT,BALL VALVE
8803

Frequently Asked Questions

What is NSN 6635-01-643-5878?

NSN 6635-01-643-5878 is a Servohydraulic Fati, manufactured by Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Instron, a Division of Illinois Tool Works, Inc., classified under FSC 6635 (No Item Name Available). Status: active.

What are the part numbers for NSN 6635-01-643-5878?

NSN 6635-01-643-5878 has 1 cross-referenced part number: 8803 (Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Instron, a Division of Illinois Tool Works, Inc.).

What NSN replaces 6635-01-643-5878?

There are 9 known substitutes for 6635-01-643-5878: 5930-00-188-1026, 6105-01-136-4472, 5445-01-209-4744 and 6 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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