PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-T-6598Transmitter,rate of Flow

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6620-00-553-8827 · FSC 6620 · No Item Name Available
Verified by PartsTable
NSN 6620-00-553-8827 — this item is cataloged by the U.S. Government under National Stock Number 6620-00-553-8827. Primary manufacturer part number: MIL-T-6598.
Features
  • Transmitter,rate of Flow — FSC 6620
  • Nondefinitive Spec/std Data: J-64 TYPE
  • Frequency Rating: 400.0 HERTZ NOMINAL
  • Terminal Type: PIN
  • Electrical Connection Controlling Agency: AND
  • Mechanical Connection Type: INTERNAL PIPE
  • Measurement Range: +200.0 TO 12000.0 POUNDS PER HOUR LBS
  • Actuation Method: PIVOTED VANE
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 6620-00-553-8827, is classified within Federal Supply Class 6620 (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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, 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
NSN6620-00-553-8827
Primary Part NumberMIL-T-6598
Item NameTransmitter,rate of Flow
FSC / FSG6620 / 66 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Nondefinitive Spec/std DataJ-64 TYPE
Frequency Rating400.0 HERTZ NOMINAL
Terminal TypePIN
Electrical Connection Controlling AgencyAND
Mechanical Connection TypeINTERNAL PIPE
Measurement Range+200.0 TO 12000.0 POUNDS PER HOUR LBS
Actuation MethodPIVOTED VANE
Electrical Connection Quantity1
Overall Thickness3.250 INCHES NOMINAL IN
Voltage Rating26.0 VOLTS NOMINAL
Mechanical Connection Quantity2
Terminal Quantity4
Attachment Feature Quantity3
PhaseSINGLE
Current TypeAC
Mounting MethodHOLE
Mechanical Connection Size1-5/16 IN. DIA IN
Electrical Connection Identifying NumberAND10066-14S-2P
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
6620-00-058-52259115-16C4A INTERCHANGEABLE
Transmitter,rate of Flow
Mission Systems Davenport Inc.
6240-00-179-1816 INTERCHANGEABLE
Lamp,glow
6620-00-514-63659115-16D1 INTERCHANGEABLE
Transmitter,rate of Flow
Mission Systems Davenport Inc.
6620-00-515-52069115-16C1A INTERCHANGEABLE
Transmitter,rate of Flow
Mission Systems Davenport Inc.
6620-00-515-52249115-16B1A INTERCHANGEABLE
Transmitter,rate of Flow
Mission Systems Davenport Inc.
6620-00-663-89629115-16A1A INTERCHANGEABLE
Transmitter,rate of Flow
Mission Systems Davenport Inc.
5940-00-990-8014J6A INTERCHANGEABLE
Terminal,lug
Fargo Mfg Co Inc
Cross-Reference Index
Part NumberManufacturer
MIL-T-6598 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILT6598CTYPEJ6A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
J6A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6620-00-058-5225INTERCHANGEABLE
TRANSMITTER,RATE OF FLOW
9115-16C4A
6240-00-179-1816INTERCHANGEABLE
LAMP,GLOW
6620-00-514-6365INTERCHANGEABLE
TRANSMITTER,RATE OF FLOW
9115-16D1
6620-00-515-5206INTERCHANGEABLE
TRANSMITTER,RATE OF FLOW
9115-16C1A
6620-00-515-5224INTERCHANGEABLE
TRANSMITTER,RATE OF FLOW
9115-16B1A
6620-00-663-8962INTERCHANGEABLE
TRANSMITTER,RATE OF FLOW
9115-16A1A
5940-00-990-8014INTERCHANGEABLE
TERMINAL,LUG
J6A

Frequently Asked Questions

What is NSN 6620-00-553-8827?

NSN 6620-00-553-8827 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 6620 (No Item Name Available). Status: active.

What are the part numbers for NSN 6620-00-553-8827?

NSN 6620-00-553-8827 has 3 cross-referenced part numbers: MIL-T-6598 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MILT6598CTYPEJ6A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), J6A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6620-00-553-8827?

There are 7 known substitutes for 6620-00-553-8827: 6620-00-058-5225, 6240-00-179-1816, 6620-00-514-6365 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-T-6598?

Key specifications for MIL-T-6598: Nondefinitive Spec/std Data: J-64 TYPE; Frequency Rating: 400.0 HERTZ NOMINAL; Overall Width: 5.000 INCHES NOMINAL IN; Terminal Type: PIN. 21 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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