NSN 6680-01-601-3909 · NIIN 016013909 · Part number HM022-T21-11
Robertson Fuel Systems, L.l.c. · FSC 6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments · FSG 66 — Instruments and Laboratory Equipment · CAGE 1T765
Government record, cited
NSN 6680-01-601-3909 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-601-3909. Manufacturer of record part number: HM022-T21-11.
Also searched as6680-01-601-3909 ·
6680016013909 ·
NIIN 016013909 ·
01-601-3909 ·
FSC 6680 Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments · CAGE 1T765 · HM022-T21-11 · HM022-T21
Manufacturer of record: Robertson Fuel Systems, L.l.c.
Identification
NSN: 6680-01-601-3909
NIIN: 016013909
FSC: 6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: HM022-T21-11
Manufacturer: Robertson Fuel Systems, L.l.c.
General Description
The Meter Kit,flow Rate Indicating, cataloged under National Stock Number 6680-01-601-3909, 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 Robertson Fuel Systems, L.l.c.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Catalog Facts
Item Name
Meter Kit,flow Rate Indicating
FSC / FSG
6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments (FSG 66)
Manufacturers
Robertson Fuel Systems, L.l.c. (CAGE 1T765)
Technical Specifications
Parameter
Value
NSN
6680-01-601-3909
Primary Part Number
HM022-T21-11
Item Name
Meter Kit,flow Rate Indicating
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 6680-01-601-3909?
NSN 6680-01-601-3909 is a Meter Kit,flow Rate Indicating, manufactured by Robertson Fuel Systems, L.l.c., classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
What part numbers are listed for NSN 6680-01-601-3909?
NSN 6680-01-601-3909 has 1 manufacturer part number on file: HM022-T21-11 (Robertson Fuel Systems, L.l.c.).
Is NSN 6680-01-601-3909 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.