PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S50KIndicator,sight,liquid

Eaton Aerospace Llc Div Fluid and Electrical Distribution Division · NSN 6680-00-845-1413 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-845-1413 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-845-1413. Primary manufacturer part number: S50K.
Features
  • Indicator,sight,liquid — FSC 6680
  • Width Across Flats: 1.250 INCHES NOMINAL IN
  • End Connection Type: UNABLE TO DECODE
  • Thread Class: UNABLE TO DECODE
  • Nominal Thread Size: UNABLE TO DECODE
  • Surface Treatment: ANODIZE
  • Data Furnishing Method: CLEAR WINDOW
  • Thread Quantity Per Inch: UNABLE TO DECODE
Applications
  • Applications requiring Aluminum Alloy construction
General Description

The Indicator,sight,liquid, cataloged under National Stock Number 6680-00-845-1413, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references 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
NSN6680-00-845-1413
Primary Part NumberS50K
Item NameIndicator,sight,liquid
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerEaton Aerospace Llc Div Fluid and Electrical Distribution Division
StatusACTIVE
Width Across Flats1.250 INCHES NOMINAL IN
End Connection TypeUNABLE TO DECODE
Thread ClassUNABLE TO DECODE
Nominal Thread SizeUNABLE TO DECODE
Surface TreatmentANODIZE
Data Furnishing MethodCLEAR WINDOW
Thread Quantity Per InchUNABLE TO DECODE
MaterialALUMINUM ALLOY
Media for Which DesignedOIL
Thread Series DesignatorUNABLE TO DECODE
Furnished DataLIQUID LEVEL
Features ProvidedREFLECTOR
Style DesignatorBULLS EYE
Tube Outside Diameter for Which DesignedUNABLE TO DECODE
Thread DirectionUNABLE TO DECODE
Maximum Temp Rating200.0 FAHRENHEIT DEGF
Sight Diameter0.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-013-7409SAE J512 8-6 040102B INTERCHANGEABLE
Adapter,straight,pipe to Tube
Sae International Dba Sae International
6240-00-155-78562Z5882-3 INTERCHANGEABLE
Lamp,incandescent
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3460-00-233-3869 INTERCHANGEABLE
Holder,cutting Tool
2530-00-272-7518MCFE050 INTERCHANGEABLE
Weight,wheel Balancing
Napa Automotive Parts Co
5120-00-287-2502 INTERCHANGEABLE
Screwdriver,flat Tip
6625-00-433-4262S50 INTERCHANGEABLE
Generator,pulse
Tektronix, Inc.
5340-00-527-9913S50 INTERCHANGEABLE
Plunger,quick Release
Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier
3695-00-679-6914 INTERCHANGEABLE
Saw,chain
6680-00-808-9023S50 INTERCHANGEABLE
Indicator,sight,liquid
Eaton Aerospace Llc Div Fluid and Electrical Distribution Division
6680-00-865-7928S50M INTERCHANGEABLE
Indicator,sight,liquid
Eaton Aerospace Llc Div Fluid and Electrical Distribution Division
Cross-Reference Index
Part NumberManufacturer
S50K PRIMARY Eaton Aerospace Llc Div Fluid and Electrical Distribution Division (USA)
S50 Eaton Aerospace Llc Div Fluid and Electrical Distribution Division (USA)
Related Parts
4730-00-013-7409INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
SAE J512 8-6 040102B
6240-00-155-7856INTERCHANGEABLE
LAMP,INCANDESCENT
2Z5882-3
3460-00-233-3869INTERCHANGEABLE
HOLDER,CUTTING TOOL
2530-00-272-7518INTERCHANGEABLE
WEIGHT,WHEEL BALANCING
MCFE050
5120-00-287-2502INTERCHANGEABLE
SCREWDRIVER,FLAT TIP
6625-00-433-4262INTERCHANGEABLE
GENERATOR,PULSE
S50
5340-00-527-9913INTERCHANGEABLE
PLUNGER,QUICK RELEASE
S50
3695-00-679-6914INTERCHANGEABLE
SAW,CHAIN
6680-00-808-9023INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
S50
6680-00-865-7928INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
S50M
4820-00-951-7361INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
15011
5340-01-023-2754INTERCHANGEABLE
KEY BLANK
01007RA

Frequently Asked Questions

What is NSN 6680-00-845-1413?

NSN 6680-00-845-1413 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 6680-00-845-1413?

NSN 6680-00-845-1413 has 2 cross-referenced part numbers: S50K (Eaton Aerospace Llc Div Fluid and Electrical Distribution Division), S50 (Eaton Aerospace Llc Div Fluid and Electrical Distribution Division).

What NSN replaces 6680-00-845-1413?

There are 12 known substitutes for 6680-00-845-1413: 4730-00-013-7409, 6240-00-155-7856, 3460-00-233-3869 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of S50K?

Key specifications for S50K: Width Across Flats: 1.250 INCHES NOMINAL IN; End Connection Type: UNABLE TO DECODE; Thread Class: UNABLE TO DECODE; Nominal Thread Size: UNABLE TO DECODE. 18 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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