PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AN/PSM-2AOhmmeter

Joint Electronics Type Designation System · NSN 6625-00-643-2250 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-643-2250 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-643-2250. Primary manufacturer part number: AN/PSM-2A.
Features
  • Ohmmeter — FSC 6625
  • Operating Voltage Rating in Volts: 500.0 AC NOMINAL
  • Power Source: INTERNAL
  • Furnished Items and Quantity: CARRYING CASE 1;INSTRUCTION BOOK 1;TEST LEADS 2
  • Frequency Rating: 50.000 HERTZ MAXIMUM
  • Measurement Range: +0.0 TO 1000.0 MEGOHMS SINGLE INDICATOR SINGLE RANGE
  • Features Provided: PORTABLE
  • Reference Number Differentiating Characteristics: DIFFERENTIATED BY SPARE PARTS FURNISHED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ohmmeter, cataloged under National Stock Number 6625-00-643-2250, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Joint Electronics Type Designation System. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-643-2250
Primary Part NumberAN/PSM-2A
Item NameOhmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerJoint Electronics Type Designation System
StatusCANCELLED
Operating Voltage Rating in Volts500.0 AC NOMINAL
Power SourceINTERNAL
Furnished Items and QuantityCARRYING CASE 1;INSTRUCTION BOOK 1;TEST LEADS 2
Frequency Rating50.000 HERTZ MAXIMUM
Measurement Range+0.0 TO 1000.0 MEGOHMS SINGLE INDICATOR SINGLE RANGE
Features ProvidedPORTABLE
Reference Number Differentiating CharacteristicsDIFFERENTIATED BY SPARE PARTS FURNISHED
PhaseSINGLE
Operating Voltage Rating in Volts500.0 AC NOMINAL
Power SourceINTERNAL
Furnished Items and QuantityCARRYING CASE 1;INSTRUCTION BOOK 1;TEST LEADS 2
Frequency Rating50.000 HERTZ MAXIMUM
Measurement Range+0.0 TO 1000.0 MEGOHMS SINGLE INDICATOR SINGLE RANGE
Features ProvidedPORTABLE
Reference Number Differentiating CharacteristicsDIFFERENTIATED BY SPARE PARTS FURNISHED
PhaseSINGLE
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor6625-00-643-1785
HAZMATNo
Shelf Life Code0
Criticality CodeU
Unit of IssueEA
SMR CodeVU
Weight8.0000 lbs
Cube0.0830 cu ft
Verified Substitutes 4
No Item Name Available
Test Set,insulation Breakdown
6625-01-523-0407ANPSM2A SUCCESSOR
Ohmmeter
Joint Electronics Type Designation System
6625-00-509-801710MG INTERCHANGEABLE
Ohmmeter
Cabot Corp
Cross-Reference Index
Part NumberManufacturer
AN/PSM-2A Joint Electronics Type Designation System (USA)
MIL-O-16485 TYPEGM Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
ANPSM2A Eastern Air Devices Inc Dba Ead Motors (USA)
Related Parts
SUCCESSOR 6625-00-643-1785 Test Set,insulation Breakdown
6625-00-059-9492SUCCESSOR
NO ITEM NAME AVAILABLE
6625-01-523-0407SUCCESSOR
OHMMETER
ANPSM2A
6625-00-509-8017INTERCHANGEABLE
OHMMETER
10MG

Frequently Asked Questions

What is NSN 6625-00-643-2250?

NSN 6625-00-643-2250 is a Ohmmeter, manufactured by Joint Electronics Type Designation System, classified under FSC 6625 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6625-00-643-2250?

NSN 6625-00-643-2250 has 3 cross-referenced part numbers: AN/PSM-2A (Joint Electronics Type Designation System), MIL-O-16485 TYPEGM (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), ANPSM2A (Eastern Air Devices Inc Dba Ead Motors).

What NSN replaces 6625-00-643-2250?

There are 4 known substitutes for 6625-00-643-2250: 6625-00-059-9492, 6625-00-643-1785, 6625-01-523-0407 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AN/PSM-2A?

Key specifications for AN/PSM-2A: Operating Voltage Rating in Volts: 500.0 AC NOMINAL; Overall Width: 6.250 INCHES NOMINAL IN; Power Source: INTERNAL; Overall Length: 7.250 INCHES NOMINAL IN. 24 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6625-00-643-2250 still in active supply?

NSN 6625-00-643-2250 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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