PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

250BBridge,impedance

Electro Scientific Industries Inc · NSN 6625-00-435-5470 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-435-5470 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-435-5470. Primary manufacturer part number: 250B.
Features
  • Bridge,impedance — FSC 6625
  • Oscillator Location: INTERNAL
  • Scale Overall Accuracy Rating in Percent: -1.000 TO 1.000
  • Balance Indicator Type: METER
  • Furnished Items and Quantity: SIZE D CELL BATTERIES 4
  • Adjustment Method: RATIO SWITCH
  • Oscillator Frequency Rating: 1.0 KILOHERTZ
  • Material: PLASTIC CASE
Applications
  • Applications requiring Plastic Case construction
General Description

The Bridge,impedance, cataloged under National Stock Number 6625-00-435-5470, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Electro Scientific Industries Inc. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-435-5470
Primary Part Number250B
Item NameBridge,impedance
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerElectro Scientific Industries Inc
StatusCANCELLED
Oscillator LocationINTERNAL
Scale Overall Accuracy Rating in Percent-1.000 TO 1.000
Balance Indicator TypeMETER
Furnished Items and QuantitySIZE D CELL BATTERIES 4
Adjustment MethodRATIO SWITCH
Oscillator Frequency Rating1.0 KILOHERTZ
MaterialPLASTIC CASE
AC Voltage Rating6.0 VOLTS NOMINAL
Oscillator LocationINTERNAL
Scale Overall Accuracy Rating in Percent-1.000 TO 1.000
Balance Indicator TypeMETER
Furnished Items and QuantitySIZE D CELL BATTERIES 4
Adjustment MethodRATIO SWITCH
Oscillator Frequency Rating1.0 KILOHERTZ
MaterialPLASTIC CASE
AC Voltage Rating6.0 VOLTS NOMINAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor6625-00-144-3070 (ZM61U)
HAZMATNo
Shelf Life Code0
Criticality Code00
Unit of IssueEA
SMR CodeYD
Weight27.0000 lbs
Cube4.6730 cu ft
Verified Substitutes 9
No Item Name Available
6625-00-144-3070ZM61U SUCCESSOR
Bridge,capacitance-Inductance-Re
Joint Electronics Type Designation System
6625-00-987-6722250B SUCCESSOR
Detecting Element,directional Co
Bird Electronic Corporation Div Bird Electronic Corp
Analyzer,digital Data,electronic
4310-00-035-7512111023PC252 INTERCHANGEABLE
Liner,cylinder
Curtiss-Wright Electro-Mechanical Corporation Div Epd
5360-00-292-424104751-250B-375 INTERCHANGEABLE
Spring,helical,compression
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
4470-00-925-4351 INTERCHANGEABLE
Flask,sampling
5961-00-980-7520 INTERCHANGEABLE
Transistor
6685-01-373-2525250B INTERCHANGEABLE
Controller,pressure
Mks Inc.
Cross-Reference Index
Part NumberManufacturer
250B Electro Scientific Industries Inc (USA)
1650-9702 Iet Labs Inc (USA)
1650B Genrad Inc (USA)
TS-460C/U Joint Electronics Type Designation System (USA)
1650B Iet Labs Inc (USA)
1650-9702 Genrad Inc (USA)
Related Parts
SUCCESSOR 6625-00-144-3070 Bridge,capacitance-Inductance-Re · ZM61U
6625-00-241-2579SUCCESSOR
NO ITEM NAME AVAILABLE
6625-00-987-6722SUCCESSOR
DETECTING ELEMENT,DIRECTIONAL CO
250B
6625-01-321-9286SUCCESSOR
ANALYZER,DIGITAL DATA,ELECTRONIC
4310-00-035-7512INTERCHANGEABLE
LINER,CYLINDER
111023PC252
5360-00-292-4241INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
04751-250B-375
4470-00-925-4351INTERCHANGEABLE
FLASK,SAMPLING
5961-00-980-7520INTERCHANGEABLE
TRANSISTOR
6685-01-373-2525INTERCHANGEABLE
CONTROLLER,PRESSURE
250B

Frequently Asked Questions

What is NSN 6625-00-435-5470?

NSN 6625-00-435-5470 is a Bridge,impedance, manufactured by Electro Scientific Industries Inc, classified under FSC 6625 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6625-00-435-5470?

NSN 6625-00-435-5470 has 6 cross-referenced part numbers: 250B (Electro Scientific Industries Inc), 1650-9702 (Iet Labs Inc), 1650B (Genrad Inc), TS-460C/U (Joint Electronics Type Designation System), 1650B (Iet Labs Inc) and 1 more.

What NSN replaces 6625-00-435-5470?

There are 9 known substitutes for 6625-00-435-5470: 6625-00-241-2579, 6625-00-144-3070, 6625-00-987-6722 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 250B?

Key specifications for 250B: Oscillator Location: INTERNAL; Scale Overall Accuracy Rating in Percent: -1.000 TO 1.000; Balance Indicator Type: METER; Furnished Items and Quantity: SIZE D CELL BATTERIES 4. 24 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6625-00-435-5470 still in active supply?

NSN 6625-00-435-5470 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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