PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M146CIndicator,sight,liquid

Eaton Aerospace Llc Div Fluid and Electrical Distribution Division · NSN 6680-01-111-9741 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-01-111-9741 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-111-9741. Primary manufacturer part number: M146C.
Features
  • Indicator,sight,liquid — FSC 6680
  • Sight Diameter: 1.187 INCHES NOMINAL IN
  • Surface Treatment: CADMIUM
  • Width Across Flats: 1.750 INCHES NOMINAL IN
  • Media for Which Designed: OIL
  • Furnished Data: ACTIVE INGREDIENT PRESENCE
  • Nominal Thread Size: UNABLE TO DECODE
  • Thread Quantity Per Inch: UNABLE TO DECODE
Applications
  • Applications requiring Steel construction
General Description

The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-111-9741, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Eaton Aerospace Llc Div Fluid and Electrical Distribution Division. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-01-111-9741
Primary Part NumberM146C
Item NameIndicator,sight,liquid
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerEaton Aerospace Llc Div Fluid and Electrical Distribution Division
StatusACTIVE
Sight Diameter1.187 INCHES NOMINAL IN
Surface TreatmentCADMIUM
Width Across Flats1.750 INCHES NOMINAL IN
Media for Which DesignedOIL
Furnished DataACTIVE INGREDIENT PRESENCE
Nominal Thread SizeUNABLE TO DECODE
Thread Quantity Per InchUNABLE TO DECODE
Features ProvidedREFLECTOR
Thread DirectionUNABLE TO DECODE
Style DesignatorBULLS EYE, HI-TEMP/HIGH PRESSURE
MaterialSTEEL
Maximum Temp Rating500.0 FAHRENHEIT DEGF
Data Furnishing MethodCLEAR WINDOW
End Connection TypeUNABLE TO DECODE
Maximum Working Pressure3000.0 POUNDS PER SQUARE INCH (PSI) LBS
Thread Series DesignatorUNABLE TO DECODE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3110-00-155-6718150559 INTERCHANGEABLE
Bearing,ball,annular
Chrysler Realty Company Llc Dba Daimler Chrysler
2330-00-569-93728736091 INTERCHANGEABLE
Semitrailer,van
U S Army Tank Automotive Command Amsta-Im-Mm
2530-00-845-84421881984 INTERCHANGEABLE
Cylinder,master
Chrysler Realty Company Llc Dba Daimler Chrysler
5910-00-957-27432011524 INTERCHANGEABLE
Capacitor,fixed,electrolytic
Champion Aerospace Llc
5360-01-146-4530 INTERCHANGEABLE
Spring,helical,extension
5120-01-367-4549 INTERCHANGEABLE
Socket,socket Wrench
Cross-Reference Index
Part NumberManufacturer
M146C PRIMARY Eaton Aerospace Llc Div Fluid and Electrical Distribution Division (USA)
L106452 Cnh Industrial America Llc Dba Cnh America (USA)
M146 Eaton Aerospace Llc Div Fluid and Electrical Distribution Division (USA)
Related Parts
3110-00-155-6718INTERCHANGEABLE
BEARING,BALL,ANNULAR
150559
2330-00-569-9372INTERCHANGEABLE
SEMITRAILER,VAN
8736091
2530-00-845-8442INTERCHANGEABLE
CYLINDER,MASTER
1881984
5910-00-957-2743INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
2011524
5360-01-146-4530INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
5120-01-367-4549INTERCHANGEABLE
SOCKET,SOCKET WRENCH

Frequently Asked Questions

What is NSN 6680-01-111-9741?

NSN 6680-01-111-9741 is a Indicator,sight,liquid, manufactured by Eaton Aerospace Llc Div Fluid and Electrical Distribution Division, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-01-111-9741?

NSN 6680-01-111-9741 has 3 cross-referenced part numbers: M146C (Eaton Aerospace Llc Div Fluid and Electrical Distribution Division), L106452 (Cnh Industrial America Llc Dba Cnh America), M146 (Eaton Aerospace Llc Div Fluid and Electrical Distribution Division).

What NSN replaces 6680-01-111-9741?

There are 6 known substitutes for 6680-01-111-9741: 3110-00-155-6718, 2330-00-569-9372, 2530-00-845-8442 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M146C?

Key specifications for M146C: Sight Diameter: 1.187 INCHES NOMINAL IN; Surface Treatment: CADMIUM; Width Across Flats: 1.750 INCHES NOMINAL IN; Media for Which Designed: OIL. 17 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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