PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7M21AUOhmmeter

Joint Electronics Type Designation System · NSN 6625-00-246-5880 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-246-5880 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-246-5880. Primary manufacturer part number: 7M21AU.
Features
  • Ohmmeter — FSC 6625
  • Operating Voltage Rating in Volts: 500.0 DC NOMINAL
  • Measurement Range: +0.0 TO 1000.0 MEGOHMS SINGLE INDICATOR SINGLE RANGE
  • Power Source: INTERNAL
  • Features Provided: PORTABLE
  • Furnished Items and Quantity: CARRYING CASE 1;TEST LEADS 3
  • Operating Voltage Rating in Volts: 500.0 DC NOMINAL
  • Measurement Range: +0.0 TO 1000.0 MEGOHMS SINGLE INDICATOR SINGLE RANGE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ohmmeter, cataloged under National Stock Number 6625-00-246-5880, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-246-5880
Primary Part Number7M21AU
Item NameOhmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerJoint Electronics Type Designation System
StatusCANCELLED
Operating Voltage Rating in Volts500.0 DC NOMINAL
Measurement Range+0.0 TO 1000.0 MEGOHMS SINGLE INDICATOR SINGLE RANGE
Power SourceINTERNAL
Features ProvidedPORTABLE
Furnished Items and QuantityCARRYING CASE 1;TEST LEADS 3
Operating Voltage Rating in Volts500.0 DC NOMINAL
Measurement Range+0.0 TO 1000.0 MEGOHMS SINGLE INDICATOR SINGLE RANGE
Power SourceINTERNAL
Features ProvidedPORTABLE
Furnished Items and QuantityCARRYING CASE 1;TEST LEADS 3
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Shelf Life Code0
Criticality CodeS
Unit of IssueEA
SMR CodeVS
Verified Substitutes 12
No Item Name Available
5915-00-260-3776 INTERCHANGEABLE
Filter,radio Frequency Interfere
5815-00-313-8668 INTERCHANGEABLE
Roller,cam
6150-00-474-41397679 INTERCHANGEABLE
Lead,electrical
Te Connectivity Corporation
6105-00-729-93435BN14EA1 INTERCHANGEABLE
Motor,direct Current
General Electric Co Motor Business Group
4730-00-764-6380 INTERCHANGEABLE
Sleeve,compression,tube-Hose Fit
5910-00-811-4562 INTERCHANGEABLE
Capacitor,variable,air Dielectri
5962-00-874-5808905395 INTERCHANGEABLE
Microcircuit,linear
Cae Usa Inc.
5325-01-021-92527679 INTERCHANGEABLE
Stud,snap Fastener
Auto Vehicle Parts Co Dba Au-Ve-Co
4520-01-039-41862N-7679 INTERCHANGEABLE
Heating Element,electrical,nonim
Star Manufacturing International Inc. Dba Star Manufacturing
Cross-Reference Index
Part NumberManufacturer
148B Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
7M21AU PRIMARY Joint Electronics Type Designation System (USA)
9113481 Us Army Aviation and Missile Command (USA)
7679 PRIMARY Avo Intl (USA)
Related Parts
6625-00-240-4603SUCCESSOR
NO ITEM NAME AVAILABLE
5915-00-260-3776INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
5815-00-313-8668INTERCHANGEABLE
ROLLER,CAM
6150-00-474-4139INTERCHANGEABLE
LEAD,ELECTRICAL
7679
6105-00-729-9343INTERCHANGEABLE
MOTOR,DIRECT CURRENT
5BN14EA1
4730-00-764-6380INTERCHANGEABLE
SLEEVE,COMPRESSION,TUBE-HOSE FIT
5910-00-811-4562INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
5962-00-874-5808INTERCHANGEABLE
MICROCIRCUIT,LINEAR
905395
5325-01-021-9252INTERCHANGEABLE
STUD,SNAP FASTENER
7679
4520-01-039-4186INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
2N-7679
3830-01-157-3035INTERCHANGEABLE
END BIT,MOLDBOARD
5930-01-249-7360INTERCHANGEABLE
SWITCH,PRESSURE
76-79

Frequently Asked Questions

What is NSN 6625-00-246-5880?

NSN 6625-00-246-5880 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 6625-00-246-5880?

NSN 6625-00-246-5880 has 4 cross-referenced part numbers: 148B (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 7M21AU (Joint Electronics Type Designation System), 9113481 (Us Army Aviation and Missile Command), 7679 (Avo Intl).

What NSN replaces 6625-00-246-5880?

There are 12 known substitutes for 6625-00-246-5880: 6625-00-240-4603, 5915-00-260-3776, 5815-00-313-8668 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7M21AU?

Key specifications for 7M21AU: Operating Voltage Rating in Volts: 500.0 DC NOMINAL; Overall Length: 8.125 INCHES NOMINAL IN; Measurement Range: +0.0 TO 1000.0 MEGOHMS SINGLE INDICATOR SINGLE RANGE; Overall Width: 6.500 INCHES NOMINAL IN. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6625-00-246-5880 still in active supply?

NSN 6625-00-246-5880 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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