FSC 6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments · FSG 66 — Instruments and Laboratory Equipment
Government record, cited
Also searched as6680-01-031-9660 ·
6680010319660 ·
NIIN 010319660 ·
01-031-9660 ·
FSC 6680 Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments
Nominal Pipe Size for Which Designed: UNABLE TO DECODE
Data Furnishing Method: CLEAR WINDOW
End Connection Type: UNABLE TO DECODE
Style Designator: ANGLE PATTERN, GLASS CYLINDER
Features Provided: PORT SEAL CAP
Media for Which Designed: OIL
Identification
NSN: 6680-01-031-9660
NIIN: 010319660
FSC: 6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments
FSG: 66 — Instruments and Laboratory Equipment
General Description
The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-031-9660, is classified within Federal Supply Class 6680 (Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
6680-01-031-9660
Item Name
Indicator,sight,liquid
FSC / FSG
6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments
Status
ACTIVE
Furnished Data
LIQUID LEVEL
Nominal Pipe Size for Which Designed
UNABLE TO DECODE
Data Furnishing Method
CLEAR WINDOW
End Connection Type
UNABLE TO DECODE
Style Designator
ANGLE PATTERN, GLASS CYLINDER
Features Provided
PORT SEAL CAP
Media for Which Designed
OIL
Material
COPPER ALLOY
Sight Height
4.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
744 SIZE 4
3/9Design control — primary reference
Ernst Flow Industries
No interchangeability data on file.
Other items in FSC 6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6680-00-000-0189
TRANSMITTER,LIQUID QUANTITY
6680-00-001-1478
GAGE ROD-CAP,LIQUID LEVEL
6680-00-001-1502
6680-00-001-1502 · Item name not on file
6680-00-001-1506
6680-00-001-1506 · Item name not on file
6680-00-001-1511
GAGE ROD,LIQUID LEVEL
6680-00-001-3672
COUNTER,ROTATING
6680-00-001-3675
INDICATOR,SIGHT,LIQUID
6680-00-001-4170
COUNTER,ROTATING
Frequently Asked Questions
What is NSN 6680-01-031-9660?
NSN 6680-01-031-9660 is a Indicator,sight,liquid, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
What are the specifications of 6680-01-031-9660?
Key specifications for 6680-01-031-9660: Furnished Data: LIQUID LEVEL; Nominal Pipe Size for Which Designed: UNABLE TO DECODE; Data Furnishing Method: CLEAR WINDOW; End Connection Type: UNABLE TO DECODE. 9 specifications are documented in the U.S. Government catalog.
Is NSN 6680-01-031-9660 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.