PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M6593-1Gage,liquid Quantity,float Type

Rochester Sensors, Llc · NSN 6680-00-122-6644 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-122-6644 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-122-6644. Primary manufacturer part number: M6593-1.
Features
  • Gage,liquid Quantity,float Type — FSC 6680
  • Oil Seal: NOT PROVIDED
  • Material: ALUMINUM FLOAT
  • Flange Length: 2.625 INCHES IN
  • Float Protective Case: NOT PROVIDED
  • Float Guide Wire: NOT PROVIDED
  • Flange Width: 2.625 INCHES IN
  • Mounting Hole Quantity: 4
Applications
  • Applications requiring Aluminum Float construction
General Description

The Gage,liquid Quantity,float Type, cataloged under National Stock Number 6680-00-122-6644, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Rochester Sensors, Llc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-00-122-6644
Primary Part NumberM6593-1
Item NameGage,liquid Quantity,float Type
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerRochester Sensors, Llc
StatusACTIVE
Oil SealNOT PROVIDED
MaterialALUMINUM FLOAT
Flange Length2.625 INCHES IN
Float Protective CaseNOT PROVIDED
Float Guide WireNOT PROVIDED
Flange Width2.625 INCHES IN
Mounting Hole Quantity4
Scale TypeSTATIONARY
Scale Smallest Increment0.250 TANK
Mounting MethodFLANGE
Indicator TypeDIAL
Scale CalibrationE TO F RANGE
Overall Diameter5.125 INCHES NOMINAL IN
Mounting Hole Diameter0.250 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5961-00-087-6047 INTERCHANGEABLE
Semiconductor Device,diode
Cross-Reference Index
Part NumberManufacturer
M6593-1 Rochester Sensors, Llc (USA)
7853-1 Rochester Sensors, Llc (USA)
67A77C290 Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA)
67A77C290 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
Related Parts
5961-00-087-6047INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE

Frequently Asked Questions

What is NSN 6680-00-122-6644?

NSN 6680-00-122-6644 is a Gage,liquid Quantity,float Type, manufactured by Rochester Sensors, Llc, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-00-122-6644?

NSN 6680-00-122-6644 has 4 cross-referenced part numbers: M6593-1 (Rochester Sensors, Llc), 7853-1 (Rochester Sensors, Llc), 67A77C290 (Engineered Air Systems, Inc. Dba Drs Sustainment Systems), 67A77C290 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).

What NSN replaces 6680-00-122-6644?

There is 1 known substitute for 6680-00-122-6644: 5961-00-087-6047. Verify interchangeability with system specifications before substitution.

What are the specifications of M6593-1?

Key specifications for M6593-1: Oil Seal: NOT PROVIDED; Material: ALUMINUM FLOAT; Flange Length: 2.625 INCHES IN; Float Protective Case: NOT PROVIDED. 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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