NSN 6680-01-425-1127 · NIIN 014251127 · Part number MF21B
Firesearch Corporation Dba Fire Research Corporation · FSC 6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments · FSG 66 — Instruments and Laboratory Equipment · CAGE 54280
Government record, cited
NSN 6680-01-425-1127 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-425-1127. Manufacturer of record part number: MF21B.
Also searched as6680-01-425-1127 ·
6680014251127 ·
NIIN 014251127 ·
01-425-1127 ·
FSC 6680 Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments · CAGE 54280 · MF21B
Manufacturer of record: Firesearch Corporation Dba Fire Research Corporation
Identification
NSN: 6680-01-425-1127
NIIN: 014251127
FSC: 6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: MF21B
Manufacturer: Firesearch Corporation Dba Fire Research Corporation
General Description
The Indicator,rate of Flow, cataloged under National Stock Number 6680-01-425-1127, 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 Firesearch Corporation Dba Fire Research Corporation. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 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
6680-01-425-1127
Primary Part Number
MF21B
Item Name
Indicator,rate of Flow
FSC / FSG
6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments
Manufacturer
Firesearch Corporation Dba Fire Research Corporation
Firesearch Corporation Dba Fire Research Corporation (USA)
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 6680-01-425-1127?
NSN 6680-01-425-1127 is a Indicator,rate of Flow, manufactured by Firesearch Corporation Dba Fire Research Corporation, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
What part numbers are listed for NSN 6680-01-425-1127?
NSN 6680-01-425-1127 has 1 manufacturer part number on file: MF21B (Firesearch Corporation Dba Fire Research Corporation).
What are the specifications of MF21B?
Key specifications for MF21B: Current Type: DC; Usage Design: RATE OF FLOW; Special Features: TESTS BOTH FLOW RATE AND PRESSURE; RATE OF FLOW RANGE: 30-1200 GPM; PRESSURE RANGE: 0-250 PSI; SUPPLIED WITH RECHARGEABLE INTERNAL BATTERY AND CHARGER. 2 specifications are documented in the U.S. Government catalog.
Is NSN 6680-01-425-1127 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.