PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

820120Indicator,sight,liquid

Setra Systems, Inc. Dba Gems Sensors · NSN 6680-01-546-2555 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-01-546-2555 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-546-2555. Primary manufacturer part number: 820120.
Features
  • Indicator,sight,liquid — FSC 6680
  • Maximum Working Pressure: 200.0 POUNDS PER SQUARE INCH (PSI) LBS
  • Data Furnishing Method: CLEAR WINDOW
  • Maximum Temp Rating: 300.0 FAHRENHEIT DEGF
  • Furnished Data: LIQUID LEVEL
  • Material: COPPER ALLOY
  • 2 verified cross-references
  • Primary manufacturer: Setra Systems, Inc. Dba Gems Sensors
Applications
  • Applications requiring Copper Alloy construction
General Description

The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-546-2555, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Setra Systems, Inc. Dba Gems Sensors. Government technical data includes 5 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-01-546-2555
Primary Part Number820120
Item NameIndicator,sight,liquid
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerSetra Systems, Inc. Dba Gems Sensors
StatusACTIVE
Maximum Working Pressure200.0 POUNDS PER SQUARE INCH (PSI) LBS
Data Furnishing MethodCLEAR WINDOW
Maximum Temp Rating300.0 FAHRENHEIT DEGF
Furnished DataLIQUID LEVEL
MaterialCOPPER ALLOY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
1375-00-028-5235 INTERCHANGEABLE
Charge,demolition
1375-00-028-5237 INTERCHANGEABLE
Charge,demolition
1375-00-529-7698E3070230 INTERCHANGEABLE
Charge,demolition
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5331-01-176-79158201-20 INTERCHANGEABLE
O-Ring
Aqualung Usa, Inc
4820-01-584-6156820-120 INTERCHANGEABLE
Valve,flow Control
Kirby Morgan Dive Systems Inc
Cross-Reference Index
Part NumberManufacturer
VLI-87000-40-0-B-3/4"150#FLGS Setra Systems, Inc. Dba Gems Sensors (USA)
820120 PRIMARY Setra Systems, Inc. Dba Gems Sensors (USA)
Related Parts
1375-00-028-5235INTERCHANGEABLE
CHARGE,DEMOLITION
1375-00-028-5237INTERCHANGEABLE
CHARGE,DEMOLITION
1375-00-529-7698INTERCHANGEABLE
CHARGE,DEMOLITION
E3070230
5331-01-176-7915INTERCHANGEABLE
O-RING
8201-20
4820-01-584-6156INTERCHANGEABLE
VALVE,FLOW CONTROL
820-120

Frequently Asked Questions

What is NSN 6680-01-546-2555?

NSN 6680-01-546-2555 is a Indicator,sight,liquid, manufactured by Setra Systems, Inc. Dba Gems Sensors, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-01-546-2555?

NSN 6680-01-546-2555 has 2 cross-referenced part numbers: VLI-87000-40-0-B-3/4"150#FLGS (Setra Systems, Inc. Dba Gems Sensors), 820120 (Setra Systems, Inc. Dba Gems Sensors).

What NSN replaces 6680-01-546-2555?

There are 5 known substitutes for 6680-01-546-2555: 1375-00-028-5235, 1375-00-028-5237, 1375-00-529-7698 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 820120?

Key specifications for 820120: Maximum Working Pressure: 200.0 POUNDS PER SQUARE INCH (PSI) LBS; Data Furnishing Method: CLEAR WINDOW; End Item Identification: INDICATOR, LIQUID; Part Name Assigned by Controlling Agency: (INAVY) SURESITE, LEVEL INDICATOR TYPE B, HI-SHOCK APPLICATIONS. 7 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com