PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1-1764-1Indicator,sight,liquid

Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris · NSN 6680-00-761-2431 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-761-2431 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-761-2431. Primary manufacturer part number: 1-1764-1.
Features
  • Indicator,sight,liquid — FSC 6680
  • Material: COPPER ALLOY
  • Sight Height: 4.000 INCHES NOMINAL IN
  • Media for Which Designed: OIL
  • Data Furnishing Method: CLEAR WINDOW
  • Furnished Data: LIQUID LEVEL
  • 4 verified cross-references
  • Primary manufacturer: Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
Applications
  • Applications requiring Copper Alloy construction
General Description

The Indicator,sight,liquid, cataloged under National Stock Number 6680-00-761-2431, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris. Government technical data includes 5 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-00-761-2431
Primary Part Number1-1764-1
Item NameIndicator,sight,liquid
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerCurtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
StatusACTIVE
MaterialCOPPER ALLOY
Sight Height4.000 INCHES NOMINAL IN
Media for Which DesignedOIL
Data Furnishing MethodCLEAR WINDOW
Furnished DataLIQUID LEVEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6220-00-111-3494117641 INTERCHANGEABLE
Panel,indicating,light Transmitt
Bae Systems Information and Electronic Systems Integration Inc.
5950-00-168-629611764 INTERCHANGEABLE
Reactor
Stanford Applied Engineering Inc
2520-00-231-599122205 INTERCHANGEABLE
Parts Kit,friction Clutch
Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations
5330-00-292-378911764 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
6340-00-327-9291117-64 INTERCHANGEABLE
Panel Assy,fire Det
City Electric Distributors Inc
5961-00-594-3070 INTERCHANGEABLE
Semiconductor Device,diode
3040-00-607-7210ST11764 INTERCHANGEABLE
Lining,friction
Borg-Warner Corp
5950-00-645-1131B7414636PT2 INTERCHANGEABLE
Reactor
Lockheed Martin Corporation Div Rms
4320-00-857-107633104 INTERCHANGEABLE
Impeller,pump,centrifugal
Westerbeke Corporation
4310-00-978-9892117641 INTERCHANGEABLE
Intake Air Filter
Rbc Transport Dynamics Corp Div Rbc Transport Dynamics
Cross-Reference Index
Part NumberManufacturer
1-1764-1 Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit (USA)
1-1764 Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit (USA)
1-1764-1 PRIMARY Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris (USA)
321944-1 Naval Air Warfare Center Aircraft Division Joint Base Jbmdl (USA)
Related Parts
6220-00-111-3494INTERCHANGEABLE
PANEL,INDICATING,LIGHT TRANSMITT
117641
5950-00-168-6296INTERCHANGEABLE
REACTOR
11764
2520-00-231-5991INTERCHANGEABLE
PARTS KIT,FRICTION CLUTCH
22205
5330-00-292-3789INTERCHANGEABLE
SEAL,PLAIN ENCASED
11764
6340-00-327-9291INTERCHANGEABLE
PANEL ASSY,FIRE DET
117-64
5961-00-594-3070INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
3040-00-607-7210INTERCHANGEABLE
LINING,FRICTION
ST11764
5950-00-645-1131INTERCHANGEABLE
REACTOR
B7414636PT2
4320-00-857-1076INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
33104
4310-00-978-9892INTERCHANGEABLE
INTAKE AIR FILTER
117641
5355-01-010-3710INTERCHANGEABLE
KNOB
5910-01-154-2336INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR

Frequently Asked Questions

What is NSN 6680-00-761-2431?

NSN 6680-00-761-2431 is a Indicator,sight,liquid, manufactured by Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-00-761-2431?

NSN 6680-00-761-2431 has 4 cross-referenced part numbers: 1-1764-1 (Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit), 1-1764 (Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit), 1-1764-1 (Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris), 321944-1 (Naval Air Warfare Center Aircraft Division Joint Base Jbmdl).

What NSN replaces 6680-00-761-2431?

There are 12 known substitutes for 6680-00-761-2431: 6220-00-111-3494, 5950-00-168-6296, 2520-00-231-5991 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1-1764-1?

Key specifications for 1-1764-1: Material: COPPER ALLOY; Overall Height: 6.000 INCHES NOMINAL IN; Sight Height: 4.000 INCHES NOMINAL IN; Media for Which Designed: OIL. 6 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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