NSN 6680-01-660-5689 · NIIN 016605689 · Part number EL-AD-221
Aero Tec Laboratories Inc Dba Aero Tec Laboratories Inc · FSC 6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments · FSG 66 — Instruments and Laboratory Equipment · CAGE 63775
Government record, cited
NSN 6680-01-660-5689 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-660-5689. Manufacturer of record part number: EL-AD-221.
Also searched as6680-01-660-5689 ·
6680016605689 ·
NIIN 016605689 ·
01-660-5689 ·
FSC 6680 Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments · CAGE 63775 · EL-AD-221
The Fuel Level Sensor, cataloged under National Stock Number 6680-01-660-5689, 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. The manufacturer of record is Aero Tec Laboratories Inc Dba Aero Tec Laboratories Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
6680-01-660-5689
Primary Part Number
EL-AD-221
Item Name
Fuel Level Sensor
FSC / FSG
6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments
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 6680-01-660-5689?
NSN 6680-01-660-5689 is a Fuel Level Sensor, manufactured by Aero Tec Laboratories Inc Dba Aero Tec Laboratories Inc, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
What part numbers are listed for NSN 6680-01-660-5689?
NSN 6680-01-660-5689 has 1 manufacturer part number on file: EL-AD-221 (Aero Tec Laboratories Inc Dba Aero Tec Laboratories Inc).
What are the specifications of EL-AD-221?
Key specifications for EL-AD-221: Part Name Assigned by Controlling Agency: FUEL SENSOR. 0 specifications are documented in the U.S. Government catalog.
Is NSN 6680-01-660-5689 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.