PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3661Cut Off Switch,airc

Ccrco, Llc Dba C C R C O · NSN 4920-01-539-3813 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-01-539-3813 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-539-3813. Primary manufacturer part number: 3661.
Features
  • Cut Off Switch,airc — FSC 4920
  • 1 verified cross-reference
  • Primary manufacturer: Ccrco, Llc Dba C C R C O
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Cut Off Switch,airc, cataloged under National Stock Number 4920-01-539-3813, is classified within Federal Supply Class 4920 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Ccrco, Llc Dba C C R C O. 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.

Catalog Facts
Item NameCut Off Switch,airc
FSC / FSG4920 — No Item Name Available (FSG 49)
ManufacturersCcrco, Llc Dba C C R C O (CAGE 08TF5)
Technical Specifications
ParameterValue
NSN4920-01-539-3813
Primary Part Number3661
Item NameCut Off Switch,airc
FSC / FSG4920 / 49 — No Item Name Available
ManufacturerCcrco, Llc Dba C C R C O
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5355-00-160-71051755762 INTERCHANGEABLE
Knob
Naval Ship Systems Command
5355-00-341-24772Z5824-253 INTERCHANGEABLE
Knob
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5950-00-366-00414030831-0701 INTERCHANGEABLE
Transformer,power
Raytheon Company Dba Raytheon Co
5950-00-833-31922104626 INTERCHANGEABLE
Reactor
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6640-00-903-4079BR661 INTERCHANGEABLE
Brush,scale Pan,laboratory
Fisher Scientific Company L.l.c.
5325-00-976-1111 INTERCHANGEABLE
Ring,retaining
5950-01-011-32026140050-6 INTERCHANGEABLE
Coil,radio Frequency
Viking Technologies, Ltd.
4510-01-096-5205 INTERCHANGEABLE
Holder,toilet Tissue
5935-01-096-7841366-1 INTERCHANGEABLE
Cover,electrical Connector
Microwave Devices Inc
6635-01-147-5496 INTERCHANGEABLE
Torque Watch Calibrator
Cross-Reference Index
Part NumberManufacturer
3661 PRIMARY Ccrco, Llc Dba C C R C O (USA)
Related Parts
5355-00-160-7105INTERCHANGEABLE
KNOB
1755762
5355-00-341-2477INTERCHANGEABLE
KNOB
2Z5824-253
5950-00-366-0041INTERCHANGEABLE
TRANSFORMER,POWER
4030831-0701
5950-00-833-3192INTERCHANGEABLE
REACTOR
2104626
6640-00-903-4079INTERCHANGEABLE
BRUSH,SCALE PAN,LABORATORY
BR661
5325-00-976-1111INTERCHANGEABLE
RING,RETAINING
5950-01-011-3202INTERCHANGEABLE
COIL,RADIO FREQUENCY
6140050-6
4510-01-096-5205INTERCHANGEABLE
HOLDER,TOILET TISSUE
5935-01-096-7841INTERCHANGEABLE
COVER,ELECTRICAL CONNECTOR
366-1
6635-01-147-5496INTERCHANGEABLE
TORQUE WATCH CALIBRATOR
5120-01-162-0328INTERCHANGEABLE
BLADE,NUTDRIVER
4820-01-367-2048INTERCHANGEABLE
POSITIONER,VALVE
3661

Frequently Asked Questions

What is NSN 4920-01-539-3813?

NSN 4920-01-539-3813 is a Cut Off Switch,airc, manufactured by Ccrco, Llc Dba C C R C O, classified under FSC 4920 (No Item Name Available). Status: active.

What are the part numbers for NSN 4920-01-539-3813?

NSN 4920-01-539-3813 has 1 cross-referenced part number: 3661 (Ccrco, Llc Dba C C R C O).

What NSN replaces 4920-01-539-3813?

There are 12 known substitutes for 4920-01-539-3813: 5355-00-160-7105, 5355-00-341-2477, 5950-00-366-0041 and 9 more. Verify interchangeability with system specifications before substitution.

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