PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S54Indicator,sight,liquid

Eaton Aerospace Llc Div Fluid and Electrical Distribution Division · NSN 6680-00-852-3600 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-852-3600 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-852-3600. Primary manufacturer part number: S54.
Features
  • Indicator,sight,liquid — FSC 6680
  • Furnished Data: LIQUID LEVEL
  • Sight Diameter: 0.760 INCHES NOMINAL IN
  • Width Across Flats: 1.380 INCHES NOMINAL IN
  • Thread Direction: UNABLE TO DECODE
  • Features Provided: REFLECTOR
  • Thread Class: UNABLE TO DECODE
  • Media for Which Designed: OIL
Applications
  • Applications requiring Aluminum Alloy construction
General Description

The Indicator,sight,liquid, cataloged under National Stock Number 6680-00-852-3600, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, 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
NSN6680-00-852-3600
Primary Part NumberS54
Item NameIndicator,sight,liquid
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerEaton Aerospace Llc Div Fluid and Electrical Distribution Division
StatusACTIVE
Furnished DataLIQUID LEVEL
Sight Diameter0.760 INCHES NOMINAL IN
Width Across Flats1.380 INCHES NOMINAL IN
Thread DirectionUNABLE TO DECODE
Features ProvidedREFLECTOR
Thread ClassUNABLE TO DECODE
Media for Which DesignedOIL
Surface TreatmentANODIZE
MaterialALUMINUM ALLOY
Thread Quantity Per InchUNABLE TO DECODE
Nominal Thread SizeUNABLE TO DECODE
End Connection TypeUNABLE TO DECODE
Data Furnishing MethodCLEAR WINDOW
Maximum Temp Rating200.0 FAHRENHEIT DEGF
Thread Series DesignatorUNABLE TO DECODE
Maximum Working Pressure990.0 POUNDS PER SQUARE INCH (PSI) LBS
Style DesignatorBULLS EYE
Sight Height0.843 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6625-00-354-9716S54 INTERCHANGEABLE
Plug-in Unit,electrical-Electron
Tektronix, Inc.
3455-00-517-5963S54 INTERCHANGEABLE
Cutter,milling,end
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
5340-00-546-60838705164 INTERCHANGEABLE
Plunger,quick Release
U S Army Tank Automotive Command Amsta-Im-Mm
5120-00-618-4915 INTERCHANGEABLE
Screwdriver,flat Tip
6680-00-808-9023S50 INTERCHANGEABLE
Indicator,sight,liquid
Eaton Aerospace Llc Div Fluid and Electrical Distribution Division
6680-00-857-23976680-00-857-2397 INTERCHANGEABLE
Indicator,sight,liquid
Aiw-Alton Inc
5805-00-933-7014S54 INTERCHANGEABLE
Stake
Indiana Steel and Wire Co Div of General Cable Co a Div of Gk Technologies Inc
5340-01-201-1066S-54 INTERCHANGEABLE
Plunger,quick Release
Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier
5340-01-237-2098300339 INTERCHANGEABLE
Slide,drawer,extension
Jonathan Engineered Solutions Corp. Dba Jonathan Engineered Solutions
5330-01-260-3183 INTERCHANGEABLE
Gasket
Cross-Reference Index
Part NumberManufacturer
S 54 Aiw-Alton Inc (USA)
300339 Edo (USA)
S54 PRIMARY Eaton Aerospace Llc Div Fluid and Electrical Distribution Division (USA)
00-896-6251 Replacement NSN of Temporarily Maintained NSN
RI-011 Rhythm Industries Inc (USA)
6680-00-852-3600 Aiw-Alton Inc (USA)
RI-011-2 Rhythm Industries Inc (USA)
Related Parts
6625-00-354-9716INTERCHANGEABLE
PLUG-IN UNIT,ELECTRICAL-ELECTRON
S54
3455-00-517-5963INTERCHANGEABLE
CUTTER,MILLING,END
S54
5340-00-546-6083INTERCHANGEABLE
PLUNGER,QUICK RELEASE
8705164
5120-00-618-4915INTERCHANGEABLE
SCREWDRIVER,FLAT TIP
6680-00-808-9023INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
S50
6680-00-857-2397INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
6680-00-857-2397
5805-00-933-7014INTERCHANGEABLE
STAKE
S54
5340-01-201-1066INTERCHANGEABLE
PLUNGER,QUICK RELEASE
S-54
5340-01-237-2098INTERCHANGEABLE
SLIDE,DRAWER,EXTENSION
300339
5330-01-260-3183INTERCHANGEABLE
GASKET
5360-01-385-6297INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
S-54
4730-01-518-0467INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
S-54, 5IN.STZ,5IN FHN

Frequently Asked Questions

What is NSN 6680-00-852-3600?

NSN 6680-00-852-3600 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 6680-00-852-3600?

NSN 6680-00-852-3600 has 7 cross-referenced part numbers: S 54 (Aiw-Alton Inc), 300339 (Edo), S54 (Eaton Aerospace Llc Div Fluid and Electrical Distribution Division), 00-896-6251 (Replacement NSN of Temporarily Maintained NSN), RI-011 (Rhythm Industries Inc) and 2 more.

What NSN replaces 6680-00-852-3600?

There are 12 known substitutes for 6680-00-852-3600: 6625-00-354-9716, 3455-00-517-5963, 5340-00-546-6083 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of S54?

Key specifications for S54: Furnished Data: LIQUID LEVEL; Sight Diameter: 0.760 INCHES NOMINAL IN; Width Across Flats: 1.380 INCHES NOMINAL IN; Thread Direction: UNABLE TO DECODE. 19 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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