PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILT25439TYPEMB3Transmitter,rate of Flow

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6680-00-569-2558 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-569-2558 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-569-2558. Primary manufacturer part number: MILT25439TYPEMB3.
Features
  • Transmitter,rate of Flow — FSC 6680
  • Electrical Connection Controlling Agency: AN
  • Voltage Rating: 115.0 VOLTS NOMINAL
  • Nondefinitive Spec/std Data: MB-3 TYPE
  • Mechanical Connection Type: INTERNAL PIPE
  • Current Type: AC
  • Phase: SINGLE
  • Actuation Method: MOMENTUM TYPE USING IMPELLER AND TURBINE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transmitter,rate of Flow, cataloged under National Stock Number 6680-00-569-2558, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-00-569-2558
Primary Part NumberMILT25439TYPEMB3
Item NameTransmitter,rate of Flow
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Electrical Connection Controlling AgencyAN
Voltage Rating115.0 VOLTS NOMINAL
Nondefinitive Spec/std DataMB-3 TYPE
Mechanical Connection TypeINTERNAL PIPE
Current TypeAC
PhaseSINGLE
Actuation MethodMOMENTUM TYPE USING IMPELLER AND TURBINE
Frequency Rating400.0 HERTZ NOMINAL
Measurement Range+0.0 TO 10000.0 POUNDS PER MINUTE LBS
Mechanical Connection Size3 IN. DIA IN
Mechanical Connection Quantity1
Electrical Connection Identifying NumberAND10066-10SL-3P
Terminal Quantity3 AND 4
Mounting MethodHOLE
Terminal TypePIN
Attachment Feature Quantity10
Electrical Connection Quantity2
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5130-00-172-54271127-0010-P10 INTERCHANGEABLE
Brush,fiber,rotary Wheel
Pace, Incorporated Dba Pace Worldwide Inc.
4920-00-288-15661125-100 INTERCHANGEABLE
Tester,pressurized Cabin Leakage
Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
6615-00-463-1848 INTERCHANGEABLE
Bench Set,test
6680-00-585-53098TJ53GAA2 INTERCHANGEABLE
Transmitter,rate of Flow
Ametek Inc Div Aerospace and Defense
2995-00-961-5110MB3 INTERCHANGEABLE
Starter,engine,air Turbine
Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix
5310-01-071-7210MB-3 INTERCHANGEABLE
Washer,lock
Metric and Multistandard Components Corp
6625-01-189-5379MB-3 INTERCHANGEABLE
Adapter,test
Analogic Corp Data Precision Div
Cross-Reference Index
Part NumberManufacturer
MILT25439TYPEMB3 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MB-3 Joint Electronics Type Designation System (USA)
MIL-T-25439 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5130-00-172-5427INTERCHANGEABLE
BRUSH,FIBER,ROTARY WHEEL
1127-0010-P10
4920-00-288-1566INTERCHANGEABLE
TESTER,PRESSURIZED CABIN LEAKAGE
1125-100
6615-00-463-1848INTERCHANGEABLE
BENCH SET,TEST
6680-00-585-5309INTERCHANGEABLE
TRANSMITTER,RATE OF FLOW
8TJ53GAA2
2995-00-961-5110INTERCHANGEABLE
STARTER,ENGINE,AIR TURBINE
MB3
5310-01-071-7210INTERCHANGEABLE
WASHER,LOCK
MB-3
6625-01-189-5379INTERCHANGEABLE
ADAPTER,TEST
MB-3

Frequently Asked Questions

What is NSN 6680-00-569-2558?

NSN 6680-00-569-2558 is a Transmitter,rate of Flow, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-00-569-2558?

NSN 6680-00-569-2558 has 3 cross-referenced part numbers: MILT25439TYPEMB3 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MB-3 (Joint Electronics Type Designation System), MIL-T-25439 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6680-00-569-2558?

There are 7 known substitutes for 6680-00-569-2558: 5130-00-172-5427, 4920-00-288-1566, 6615-00-463-1848 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILT25439TYPEMB3?

Key specifications for MILT25439TYPEMB3: Electrical Connection Controlling Agency: AN; Voltage Rating: 115.0 VOLTS NOMINAL; Nondefinitive Spec/std Data: MB-3 TYPE; Mechanical Connection Type: INTERNAL PIPE. 20 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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