PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3811Switch Assembly,limit

Scientific Atlanta Inc · NSN 6940-00-303-5539 · FSC 6940 · No Item Name Available
Verified by PartsTable
NSN 6940-00-303-5539 — this item is cataloged by the U.S. Government under National Stock Number 6940-00-303-5539. Primary manufacturer part number: 3811.
Features
  • Switch Assembly,limit — FSC 6940
  • 1 verified cross-reference
  • Primary manufacturer: Scientific Atlanta Inc
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch Assembly,limit, cataloged under National Stock Number 6940-00-303-5539, is classified within Federal Supply Class 6940 (No Item Name Available) of the Training Aids and Devices group. The primary manufacturer of record is Scientific Atlanta Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6940-00-303-5539
Primary Part Number3811
Item NameSwitch Assembly,limit
FSC / FSG6940 / 69 — No Item Name Available
ManufacturerScientific Atlanta Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-064-2447UG477U INTERCHANGEABLE
Connector,receptacle,electrical
Joint Electronics Type Designation System
4820-00-070-6924381-1 INTERCHANGEABLE
Valve,angle
Admiral Valve Llc Dba Cpv Manufacturing
5977-00-212-5871 INTERCHANGEABLE
Brush,slip Ring
2815-00-273-058518-258 INTERCHANGEABLE
Ring,piston
Dresser Industries Inc Leroi Div
1005-00-344-62543811 INTERCHANGEABLE
Sear
Smith & Wesson Sales Company
6680-00-399-26963811 INTERCHANGEABLE
Plunger Assembly,pump
King Engineering Corporation Dba King-Gage Systems
6650-00-434-0188381-1 INTERCHANGEABLE
Telescope,alignment
Brunson Instrument Company Dba Brunson Instrument Co
5950-00-615-398363065 INTERCHANGEABLE
Transformer,power
L3harris Technologies, Inc Div Space & Airborne Systems
7360-00-999-98844346 INTERCHANGEABLE
Handle,lifting,body
Bootz Mfg Co Inc
2910-01-238-264533811 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
Cross-Reference Index
Part NumberManufacturer
3811 PRIMARY Scientific Atlanta Inc (USA)
Related Parts
5935-00-064-2447INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
UG477U
4820-00-070-6924INTERCHANGEABLE
VALVE,ANGLE
381-1
5977-00-212-5871INTERCHANGEABLE
BRUSH,SLIP RING
2815-00-273-0585INTERCHANGEABLE
RING,PISTON
18-258
1005-00-344-6254INTERCHANGEABLE
SEAR
3811
6680-00-399-2696INTERCHANGEABLE
PLUNGER ASSEMBLY,PUMP
3811
6650-00-434-0188INTERCHANGEABLE
TELESCOPE,ALIGNMENT
381-1
5950-00-615-3983INTERCHANGEABLE
TRANSFORMER,POWER
63065
7360-00-999-9884INTERCHANGEABLE
HANDLE,LIFTING,BODY
4346
2910-01-238-2645INTERCHANGEABLE
FILTER ELEMENT,FLUID
33811
5915-01-316-0429INTERCHANGEABLE
FILTER,BAND PASS
3811
3040-01-370-6846INTERCHANGEABLE
PLATE,RETAINING,SHAFT
381-1

Frequently Asked Questions

What is NSN 6940-00-303-5539?

NSN 6940-00-303-5539 is a Switch Assembly,limit, manufactured by Scientific Atlanta Inc, classified under FSC 6940 (No Item Name Available). Status: active.

What are the part numbers for NSN 6940-00-303-5539?

NSN 6940-00-303-5539 has 1 cross-referenced part number: 3811 (Scientific Atlanta Inc).

What NSN replaces 6940-00-303-5539?

There are 12 known substitutes for 6940-00-303-5539: 5935-00-064-2447, 4820-00-070-6924, 5977-00-212-5871 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3811?

Key specifications for 3811: End Item Identification: 69404894571. 1 total characteristics are documented in the Federal Logistics Information System.

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