PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

E54AIndicator,sight,liquid

Ernst Flow Industries · NSN 6680-00-507-8807 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-507-8807 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-507-8807. Primary manufacturer part number: E54A.
Features
  • Indicator,sight,liquid — FSC 6680
  • Distance Between Mounting Facility Centers: 12.000 INCHES NOMINAL IN
  • Data Furnishing Method: CLEAR WINDOW AND FLOAT BALL
  • Thread Direction: UNABLE TO DECODE
  • Media for Which Designed: STEAM AND WATER
  • Maximum Working Pressure: 300.0 POUNDS PER SQUARE INCH (PSI) LBS
  • Thread Series Designator: UNABLE TO DECODE
  • Nominal Pipe Size for Which Designed: UNABLE TO DECODE
Applications
  • Applications requiring Copper Alloy construction
General Description

The Indicator,sight,liquid, cataloged under National Stock Number 6680-00-507-8807, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Ernst Flow Industries. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-00-507-8807
Primary Part NumberE54A
Item NameIndicator,sight,liquid
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerErnst Flow Industries
StatusACTIVE
Distance Between Mounting Facility Centers12.000 INCHES NOMINAL IN
Data Furnishing MethodCLEAR WINDOW AND FLOAT BALL
Thread DirectionUNABLE TO DECODE
Media for Which DesignedSTEAM AND WATER
Maximum Working Pressure300.0 POUNDS PER SQUARE INCH (PSI) LBS
Thread Series DesignatorUNABLE TO DECODE
Nominal Pipe Size for Which DesignedUNABLE TO DECODE
Thread Quantity Per InchUNABLE TO DECODE
Nominal Thread SizeUNABLE TO DECODE
MaterialCOPPER ALLOY
Sight Diameter0.750 INCHES NOMINAL IN
Style DesignatorGAGE VALVE
Furnished DataLIQUID LEVEL
Guard Rod Quantity4
End Connection TypeUNABLE TO DECODE
Features ProvidedDRAIN COCK
Sight Height10.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5940-00-779-221954A INTERCHANGEABLE
Terminal Board
Cinch Connectivity Solutions Inc.
2310-00-892-5504 INTERCHANGEABLE
Automobile,sedan
3439-01-260-533254A INTERCHANGEABLE
Diffuser,gas
Tweco Products Inc
Cross-Reference Index
Part NumberManufacturer
E54A Ernst Flow Industries (USA)
EEP34A Ernst Flow Industries Llc Div Ernst Flow Industries (USA)
EFI 34A Ernst Flow Industries Llc Div Ernst Flow Industries (USA)
EF134A Ernst Flow Industries Llc Div Ernst Flow Industries (USA)
54A 46 INCH AUTOMATIC Ernst Flow Industries Llc Div Ernst Flow Industries (USA)
54A Essex Brass Corporation (USA)
2MTB9730-3D702 Pall Corporation (USA)
EMS-7584 Clark-Reliance Llc (USA)
Related Parts
5940-00-779-2219INTERCHANGEABLE
TERMINAL BOARD
54A
2310-00-892-5504INTERCHANGEABLE
AUTOMOBILE,SEDAN
3439-01-260-5332INTERCHANGEABLE
DIFFUSER,GAS
54A

Frequently Asked Questions

What is NSN 6680-00-507-8807?

NSN 6680-00-507-8807 is a Indicator,sight,liquid, manufactured by Ernst Flow Industries, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-00-507-8807?

NSN 6680-00-507-8807 has 8 cross-referenced part numbers: E54A (Ernst Flow Industries), EEP34A (Ernst Flow Industries Llc Div Ernst Flow Industries), EFI 34A (Ernst Flow Industries Llc Div Ernst Flow Industries), EF134A (Ernst Flow Industries Llc Div Ernst Flow Industries), 54A 46 INCH AUTOMATIC (Ernst Flow Industries Llc Div Ernst Flow Industries) and 3 more.

What NSN replaces 6680-00-507-8807?

There are 3 known substitutes for 6680-00-507-8807: 5940-00-779-2219, 2310-00-892-5504, 3439-01-260-5332. Verify interchangeability with system specifications before substitution.

What are the specifications of E54A?

Key specifications for E54A: Distance Between Mounting Facility Centers: 12.000 INCHES NOMINAL IN; Data Furnishing Method: CLEAR WINDOW AND FLOAT BALL; Thread Direction: UNABLE TO DECODE; Media for Which Designed: STEAM AND WATER. 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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