PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M31Indicator,sight,liquid

Eaton Aerospace Llc Div Fluid and Electrical Distribution Division · NSN 6680-01-052-1410 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-01-052-1410 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-052-1410. Primary manufacturer part number: M31.
Features
  • Indicator,sight,liquid — FSC 6680
  • Thread Class: UNABLE TO DECODE
  • Style Designator: BULLS EYE
  • Thread Quantity Per Inch: UNABLE TO DECODE
  • Data Furnishing Method: CLEAR WINDOW
  • Furnished Data: LIQUID LEVEL
  • Thread Series Designator: UNABLE TO DECODE
  • Features Provided: REFLECTOR
Applications
  • Applications requiring Aluminum Alloy construction
General Description

The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-052-1410, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-01-052-1410
Primary Part NumberM31
Item NameIndicator,sight,liquid
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerEaton Aerospace Llc Div Fluid and Electrical Distribution Division
StatusACTIVE
Thread ClassUNABLE TO DECODE
Style DesignatorBULLS EYE
Thread Quantity Per InchUNABLE TO DECODE
Data Furnishing MethodCLEAR WINDOW
Furnished DataLIQUID LEVEL
Thread Series DesignatorUNABLE TO DECODE
Features ProvidedREFLECTOR
Surface TreatmentANODIZE
Media for Which DesignedOIL
Nominal Thread SizeUNABLE TO DECODE
MaterialALUMINUM ALLOY
End Connection TypeUNABLE TO DECODE
Sight Diameter0.750 INCHES NOMINAL IN
Thread DirectionUNABLE TO DECODE
Width Across Flats1.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5210-00-013-7560215GA INTERCHANGEABLE
Indicator,dial
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
3455-00-224-365545545 INTERCHANGEABLE
Cutter,milling,metal Slitting
Kennametal Inc. Div Kennametal Industrial Products Group
5355-00-713-6210M3-1 INTERCHANGEABLE
Pointer,dial
Roller Bearing Co of America, Inc Div Pic Design
1377-00-756-3499 INTERCHANGEABLE
Initiator,cartridge Actuated
4940-01-115-0495 INTERCHANGEABLE
Mixer,liquid
6625-01-368-7236 INTERCHANGEABLE
Multimeter
5310-01-548-2134 INTERCHANGEABLE
Washer,flat
Cross-Reference Index
Part NumberManufacturer
M31 PRIMARY Eaton Aerospace Llc Div Fluid and Electrical Distribution Division (USA)
Related Parts
5210-00-013-7560INTERCHANGEABLE
INDICATOR,DIAL
215GA
3455-00-224-3655INTERCHANGEABLE
CUTTER,MILLING,METAL SLITTING
45545
5355-00-713-6210INTERCHANGEABLE
POINTER,DIAL
M3-1
1377-00-756-3499INTERCHANGEABLE
INITIATOR,CARTRIDGE ACTUATED
4940-01-115-0495INTERCHANGEABLE
MIXER,LIQUID
6625-01-368-7236INTERCHANGEABLE
MULTIMETER
5310-01-548-2134INTERCHANGEABLE
WASHER,FLAT

Frequently Asked Questions

What is NSN 6680-01-052-1410?

NSN 6680-01-052-1410 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 6680-01-052-1410?

NSN 6680-01-052-1410 has 1 cross-referenced part number: M31 (Eaton Aerospace Llc Div Fluid and Electrical Distribution Division).

What NSN replaces 6680-01-052-1410?

There are 7 known substitutes for 6680-01-052-1410: 5210-00-013-7560, 3455-00-224-3655, 5355-00-713-6210 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M31?

Key specifications for M31: Thread Class: UNABLE TO DECODE; Style Designator: BULLS EYE; Thread Quantity Per Inch: UNABLE TO DECODE; Data Furnishing Method: CLEAR WINDOW. 16 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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