PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55526Indicator,sight,liquid

Keco Industries, Inc. · NSN 6680-01-037-5010 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-01-037-5010 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-037-5010. Primary manufacturer part number: 55526.
Features
  • Indicator,sight,liquid — FSC 6680
  • Furnished Data: ACTIVE INGREDIENT PRESENCE AND EXCESS MOISTURE CONTENT
  • Style Designator: SINGLE PORT W/CAP
  • Material: COPPER ALLOY
  • End Connection Type: UNABLE TO DECODE
  • Maximum Working Pressure: 500.0 POUNDS PER SQUARE INCH (PSI) LBS
  • Media for Which Designed: REFRIGERANT, FLUOROCARBON
  • Tube Outside Diameter for Which Designed: UNABLE TO DECODE
Applications
  • Applications requiring Copper Alloy construction
General Description

The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-037-5010, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Keco Industries, Inc.. Government technical data includes 9 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-01-037-5010
Primary Part Number55526
Item NameIndicator,sight,liquid
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerKeco Industries, Inc.
StatusACTIVE
Furnished DataACTIVE INGREDIENT PRESENCE AND EXCESS MOISTURE CONTENT
Style DesignatorSINGLE PORT W/CAP
MaterialCOPPER ALLOY
End Connection TypeUNABLE TO DECODE
Maximum Working Pressure500.0 POUNDS PER SQUARE INCH (PSI) LBS
Media for Which DesignedREFRIGERANT, FLUOROCARBON
Tube Outside Diameter for Which DesignedUNABLE TO DECODE
Data Furnishing MethodCLEAR WINDOW AND COLOR CHANGE
Maximum Temp Rating200.0 FAHRENHEIT DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5945-00-189-8705 INTERCHANGEABLE
Relay,electromagnetic
1680-00-670-8234 INTERCHANGEABLE
Gear Shaft,spur
6520-01-416-215955526 INTERCHANGEABLE
Strainer,vacuum Sys
Air Techniques, Inc.
4820-01-497-058555526 INTERCHANGEABLE
Valve,regulating,system Pressure
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
8105-01-553-740255526 INTERCHANGEABLE
Bag,plastic
Aerovironment, Inc. Dba Aerovironment Inc
5120-01-592-646055-526 INTERCHANGEABLE
Bar,pry
The Stanley Works Dba Stanley Proto
Cross-Reference Index
Part NumberManufacturer
55526 Keco Industries, Inc. (USA)
MI-30-1 1/8S Henry Technologies, Inc. (USA)
Related Parts
5945-00-189-8705INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
1680-00-670-8234INTERCHANGEABLE
GEAR SHAFT,SPUR
6520-01-416-2159INTERCHANGEABLE
STRAINER,VACUUM SYS
55526
4820-01-497-0585INTERCHANGEABLE
VALVE,REGULATING,SYSTEM PRESSURE
55526
8105-01-553-7402INTERCHANGEABLE
BAG,PLASTIC
55526
5120-01-592-6460INTERCHANGEABLE
BAR,PRY
55-526

Frequently Asked Questions

What is NSN 6680-01-037-5010?

NSN 6680-01-037-5010 is a Indicator,sight,liquid, manufactured by Keco Industries, Inc., classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-01-037-5010?

NSN 6680-01-037-5010 has 2 cross-referenced part numbers: 55526 (Keco Industries, Inc.), MI-30-1 1/8S (Henry Technologies, Inc.).

What NSN replaces 6680-01-037-5010?

There are 6 known substitutes for 6680-01-037-5010: 5945-00-189-8705, 1680-00-670-8234, 6520-01-416-2159 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 55526?

Key specifications for 55526: Overall Height: 2.312 INCHES NOMINAL IN; Furnished Data: ACTIVE INGREDIENT PRESENCE AND EXCESS MOISTURE CONTENT; Style Designator: SINGLE PORT W/CAP; Material: COPPER ALLOY. 11 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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