PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

TF1Test Set,electronic Systems

Mission Systems Davenport Inc. · NSN 6625-00-798-7639 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-798-7639 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-798-7639. Primary manufacturer part number: TF1.
Features
  • Test Set,electronic Systems — FSC 6625
  • Electrical Power Source Relationship: OPERATING
  • Enclosure Feature: SINGLE ITEM W/CARRYING CASE
  • Height: 10.810 INCHES NOMINAL IN
  • Test Type for Which Designed: FUEL QUANTITY SYSTEM
  • AC Voltage Rating: 105.000 VOLTS MINIMUM AND 125.000 VOLTS MAXIMUM LOCATION NOT OTHERWISE SPECIFIED
  • Phase: SINGLE LOCATION NOT OTHERWISE SPECIFIED
  • Frequency Rating: 47.0 HERTZ MINIMUM AND 440.0 HERTZ MAXIMUM LOCATION NOT OTHERWISE SPECIFIED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Test Set,electronic Systems, cataloged under National Stock Number 6625-00-798-7639, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Mission Systems Davenport Inc.. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-798-7639
Primary Part NumberTF1
Item NameTest Set,electronic Systems
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerMission Systems Davenport Inc.
StatusACTIVE
Electrical Power Source RelationshipOPERATING
Enclosure FeatureSINGLE ITEM W/CARRYING CASE
Height10.810 INCHES NOMINAL IN
Test Type for Which DesignedFUEL QUANTITY SYSTEM
AC Voltage Rating105.000 VOLTS MINIMUM AND 125.000 VOLTS MAXIMUM LOCATION NOT OTHERWISE SPECIFIED
PhaseSINGLE LOCATION NOT OTHERWISE SPECIFIED
Frequency Rating47.0 HERTZ MINIMUM AND 440.0 HERTZ MAXIMUM LOCATION NOT OTHERWISE SPECIFIED
Width14.250 INCHES NOMINAL IN
Length16.870 INCHES NOMINAL IN
Electrical Power Source RelationshipOPERATING
Enclosure FeatureSINGLE ITEM W/CARRYING CASE
Height10.810 INCHES NOMINAL IN
Test Type for Which DesignedFUEL QUANTITY SYSTEM
AC Voltage Rating105.000 VOLTS MINIMUM AND 125.000 VOLTS MAXIMUM LOCATION NOT OTHERWISE SPECIFIED
PhaseSINGLE LOCATION NOT OTHERWISE SPECIFIED
Frequency Rating47.0 HERTZ MINIMUM AND 440.0 HERTZ MAXIMUM LOCATION NOT OTHERWISE SPECIFIED
Width14.250 INCHES NOMINAL IN
Length16.870 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality Code00
Unit of IssueEA
SMR CodeCW
Weight7.0000 lbs
Cube0.6667 cu ft
Verified Substitutes 5
Test Set,electronic Systems
3424-00-188-6738 INTERCHANGEABLE
Furnace,heat Treating,electric
4820-00-336-8924BS516PC130 INTERCHANGEABLE
Stem,fluid Valve
Circor Naval Solutions Llc Dba Warren Pumps
5330-00-646-6782 INTERCHANGEABLE
Packing Set
6625-01-035-0257361-015-001 INTERCHANGEABLE
Test Set,electronic Systems
Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations
Cross-Reference Index
Part NumberManufacturer
TF1 PRIMARY Mission Systems Davenport Inc. (USA)
A-A-50718 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
Related Parts
6625-01-259-9187SUCCESSOR
TEST SET,ELECTRONIC SYSTEMS
3424-00-188-6738INTERCHANGEABLE
FURNACE,HEAT TREATING,ELECTRIC
4820-00-336-8924INTERCHANGEABLE
STEM,FLUID VALVE
BS516PC130
5330-00-646-6782INTERCHANGEABLE
PACKING SET
6625-01-035-0257INTERCHANGEABLE
TEST SET,ELECTRONIC SYSTEMS
361-015-001

Frequently Asked Questions

What is NSN 6625-00-798-7639?

NSN 6625-00-798-7639 is a Test Set,electronic Systems, manufactured by Mission Systems Davenport Inc., classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-798-7639?

NSN 6625-00-798-7639 has 2 cross-referenced part numbers: TF1 (Mission Systems Davenport Inc.), A-A-50718 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).

What NSN replaces 6625-00-798-7639?

There are 5 known substitutes for 6625-00-798-7639: 6625-01-259-9187, 3424-00-188-6738, 4820-00-336-8924 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of TF1?

Key specifications for TF1: Electrical Power Source Relationship: OPERATING; Special Features: PORTABLE; USED TO TEST/CALIBRATE AIRCRAFT FUEL QUANTITY GAGE,PROBES, INDICATORS & COMPLETE GAGING SYSTEM;0-8000 PF CAPACITANCE IN 4 RANGES; INSULATION RESISTANCE 0.1-100K OHMS; 5 DIGIT INCADESCENT DISPLAY W/DECIMAL PT. SELFCALIBRATING; PREVIOUS NON APPROVED ITEM NAME=TEST SET,FUEL SYSTEM; Enclosure Feature: SINGLE ITEM W/CARRYING CASE; Height: 10.810 INCHES NOMINAL IN. 22 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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