PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5-8200Indicator,sight,liquid

Ernst Flow Industries · NSN 6680-00-567-7550 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-567-7550 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-567-7550. Primary manufacturer part number: 5-8200.
Features
  • Indicator,sight,liquid — FSC 6680
  • Nominal Thread Size: UNABLE TO DECODE
  • End Connection Type: UNABLE TO DECODE
  • Surface Treatment: CHROMIUM
  • Tube Outside Diameter for Which Designed: UNABLE TO DECODE
  • Thread Direction: UNABLE TO DECODE
  • Features Provided: COUPLING NUT
  • Style Designator: HIGH PRESSURE, FLAT GLASS
Applications
  • Applications requiring Steel construction
General Description

The Indicator,sight,liquid, cataloged under National Stock Number 6680-00-567-7550, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-00-567-7550
Primary Part Number5-8200
Item NameIndicator,sight,liquid
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerErnst Flow Industries
StatusACTIVE
Nominal Thread SizeUNABLE TO DECODE
End Connection TypeUNABLE TO DECODE
Surface TreatmentCHROMIUM
Tube Outside Diameter for Which DesignedUNABLE TO DECODE
Thread DirectionUNABLE TO DECODE
Features ProvidedCOUPLING NUT
Style DesignatorHIGH PRESSURE, FLAT GLASS
Media for Which DesignedOIL
Sight Height3.000 INCHES NOMINAL IN
MaterialSTEEL
Thread ClassUNABLE TO DECODE
Thread Series DesignatorUNABLE TO DECODE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
6680-00-580-3828 INTERCHANGEABLE
Gage,liquid Level
4330-00-926-111258-587 INTERCHANGEABLE
Filter Element,fluid
Pakon Inc Dba Impak Division
4820-01-060-349920316-003 INTERCHANGEABLE
Valve Assembly
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
5895-01-199-740558200 INTERCHANGEABLE
Control-Power Supply Group
Gar Enterprises Dba Kgs Electronics
4940-01-226-402258200 INTERCHANGEABLE
Servicing Platform,self-Propelle
Time Manufacturing Company Dba Time Manufacturing Company
5120-01-290-3045582-00 INTERCHANGEABLE
Handle,valve Seat Tool
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
5120-01-431-729458200 INTERCHANGEABLE
Clamp,spring
Stanley Tools Div of Stanley Works
4920-01-642-443258200 INTERCHANGEABLE
Adapter,test
Measurement Science Directorate Corona Div Naval Surface Warfare Center Po Box 5000 Corona Ca 92878-5000
Cross-Reference Index
Part NumberManufacturer
5-8200 Ernst Flow Industries (USA)
2-03-1-6003 Uni-Systems Inc (USA)
Related Parts
6680-00-580-3828INTERCHANGEABLE
GAGE,LIQUID LEVEL
4330-00-926-1112INTERCHANGEABLE
FILTER ELEMENT,FLUID
58-587
4820-01-060-3499INTERCHANGEABLE
VALVE ASSEMBLY
20316-003
5895-01-199-7405INTERCHANGEABLE
CONTROL-POWER SUPPLY GROUP
58200
4940-01-226-4022INTERCHANGEABLE
SERVICING PLATFORM,SELF-PROPELLE
58200
5120-01-290-3045INTERCHANGEABLE
HANDLE,VALVE SEAT TOOL
582-00
5120-01-431-7294INTERCHANGEABLE
CLAMP,SPRING
58200
4920-01-642-4432INTERCHANGEABLE
ADAPTER,TEST
58200

Frequently Asked Questions

What is NSN 6680-00-567-7550?

NSN 6680-00-567-7550 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 6680-00-567-7550?

NSN 6680-00-567-7550 has 2 cross-referenced part numbers: 5-8200 (Ernst Flow Industries), 2-03-1-6003 (Uni-Systems Inc).

What NSN replaces 6680-00-567-7550?

There are 8 known substitutes for 6680-00-567-7550: 6680-00-580-3828, 4330-00-926-1112, 4820-01-060-3499 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5-8200?

Key specifications for 5-8200: Nominal Thread Size: UNABLE TO DECODE; Overall Height: 6.625 INCHES NOMINAL IN; End Connection Type: UNABLE TO DECODE; Surface Treatment: CHROMIUM. 15 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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