PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66-4Wrench,electrical a

Custom Control Sensors, Llc · NSN 5120-00-876-7980 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-876-7980 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-876-7980. Primary manufacturer part number: 66-4.
Features
  • Wrench,electrical a — FSC 5120
  • 1 verified cross-reference
  • Primary manufacturer: Custom Control Sensors, Llc
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Wrench,electrical a, cataloged under National Stock Number 5120-00-876-7980, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Custom Control Sensors, Llc. 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 NameWrench,electrical a
FSC / FSG5120 — No Item Name Available (FSG 51)
ManufacturersCustom Control Sensors, Llc (CAGE 09049)
Technical Specifications
ParameterValue
NSN5120-00-876-7980
Primary Part Number66-4
Item NameWrench,electrical a
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerCustom Control Sensors, Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5965-00-044-4489664 INTERCHANGEABLE
Microphone,dynamic
Bosch Security Systems, Inc Dba Use CAGE Code 25734 for Cataloging Div Communications Division
3110-00-100-0671664 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
5130-00-117-4743 INTERCHANGEABLE
Drill,electric,portable
6760-00-148-1938 INTERCHANGEABLE
Cable Release,photographic Shutt
4820-00-430-5602133C5J INTERCHANGEABLE
Cock,plug
Anderson Brass Co
5975-00-488-3675664 INTERCHANGEABLE
Cover,junction Box
Ni Industries Inc Bowers Mfg Co Div
6625-00-720-313922194 INTERCHANGEABLE
Multimeter
Naval Ship Systems Command
5945-00-898-71831326586 INTERCHANGEABLE
Relay,rotary
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
2920-01-038-1339664 INTERCHANGEABLE
Spark Plug
Allied-Signal Inc Autolite Div
4730-01-182-0936046031-1 INTERCHANGEABLE
Strainer,suction
Sea Cure Technology, Inc
Cross-Reference Index
Part NumberManufacturer
66-4 PRIMARY Custom Control Sensors, Llc (USA)
Related Parts
5965-00-044-4489INTERCHANGEABLE
MICROPHONE,DYNAMIC
664
3110-00-100-0671INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
664
5130-00-117-4743INTERCHANGEABLE
DRILL,ELECTRIC,PORTABLE
6760-00-148-1938INTERCHANGEABLE
CABLE RELEASE,PHOTOGRAPHIC SHUTT
4820-00-430-5602INTERCHANGEABLE
COCK,PLUG
133C5J
5975-00-488-3675INTERCHANGEABLE
COVER,JUNCTION BOX
664
6625-00-720-3139INTERCHANGEABLE
MULTIMETER
22194
5945-00-898-7183INTERCHANGEABLE
RELAY,ROTARY
1326586
2920-01-038-1339INTERCHANGEABLE
SPARK PLUG
664
4730-01-182-0936INTERCHANGEABLE
STRAINER,SUCTION
046031-1
7510-01-243-4518INTERCHANGEABLE
TAPE,PRESSURE SENSITIVE ADHESIVE
665 1/4 IN.
6240-01-421-3621INTERCHANGEABLE
LAMP,INCANDESCENT
664

Frequently Asked Questions

What is NSN 5120-00-876-7980?

NSN 5120-00-876-7980 is a Wrench,electrical a, manufactured by Custom Control Sensors, Llc, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-876-7980?

NSN 5120-00-876-7980 has 1 cross-referenced part number: 66-4 (Custom Control Sensors, Llc).

What NSN replaces 5120-00-876-7980?

There are 12 known substitutes for 5120-00-876-7980: 5965-00-044-4489, 3110-00-100-0671, 5130-00-117-4743 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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