The Tank Unit,fuel Quantity, cataloged under National Stock Number 6680-01-012-0329, 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 Firstmark Aerospace Corp. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-01-012-0329 |
| Primary Part Number | FG150L11 |
| Item Name | Tank Unit,fuel Quantity |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Firstmark Aerospace Corp |
| Status | ACTIVE |
| General Characteristics Item Description | 11.350 IN. SENSING LG,12.000 IN. O/A LG,2.317 IN. DIA,3.093 IN. LG TANK COMPENSATOR SENSING O/A DIM. IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 10-3065-249 | The Boeing Company Div Commercial (USA) |
| FG150L11 PRIMARY | Firstmark Aerospace Corp (USA) |
| Reference | Meaning |
|---|---|
| FG150L11 | 5/9 Secondary reference U.S. Government activity |
| 10-3065-249 | 5/9 Secondary reference U.S. Government activity |
NSN 6680-01-012-0329 is a Tank Unit,fuel Quantity, manufactured by Firstmark Aerospace Corp, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-012-0329 has 2 manufacturer part numbers on file: 10-3065-249 (The Boeing Company Div Commercial), FG150L11 (Firstmark Aerospace Corp).
Key specifications for FG150L11: General Characteristics Item Description: 11.350 IN. SENSING LG,12.000 IN. O/A LG,2.317 IN. DIA,3.093 IN. LG TANK COMPENSATOR SENSING O/A DIM. IN. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 6680-01-012-0329 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.