PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

255Ohmmeter

Associated Research Incorporated · NSN 6625-00-155-6030 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-155-6030 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-155-6030. Primary manufacturer part number: 255.
Features
  • Ohmmeter — FSC 6625
  • Circuit Attachment Method and Quantity: 2 WIRE LEAD
  • Operating Voltage Rating in Volts: 1.500 DC NOMINAL
  • Power Source: INTERNAL
  • Measurement Range: +0.0 TO 3.0 OHMS SINGLE INDICATOR FIRST RANGE
  • Nuclear Hardness Critical Feature: NONHARDENED
  • Indicator Type: DIAL W/POINTER
  • Measurement Range: +0.0 TO 30.0 OHMS SINGLE INDICATOR SECOND RANGE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ohmmeter, cataloged under National Stock Number 6625-00-155-6030, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Associated Research Incorporated. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-155-6030
Primary Part Number255
Item NameOhmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerAssociated Research Incorporated
StatusACTIVE
Circuit Attachment Method and Quantity2 WIRE LEAD
Operating Voltage Rating in Volts1.500 DC NOMINAL
Power SourceINTERNAL
Measurement Range+0.0 TO 3.0 OHMS SINGLE INDICATOR FIRST RANGE
Nuclear Hardness Critical FeatureNONHARDENED
Indicator TypeDIAL W/POINTER
Measurement Range+0.0 TO 30.0 OHMS SINGLE INDICATOR SECOND RANGE
Measurement Range+0.0 TO 3000.0 OHMS SINGLE INDICATOR FOURTH RANGE
Style DesignatorRECTANGULAR OR SQUARE
Measurement Range+0.0 TO 300.0 OHMS SINGLE INDICATOR THIRD RANGE
Installation DesignHANDHELD
Circuit Current for Which DesignedDC
Furnished Items and QuantitySTEEL CASE 1; INSTRUCTION MANUAL 1; BATTERIES 2
Accuracy in Percent-0.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
Circuit Attachment Method and Quantity2 WIRE LEAD
Operating Voltage Rating in Volts1.500 DC NOMINAL
Power SourceINTERNAL
Measurement Range+0.0 TO 3.0 OHMS SINGLE INDICATOR FIRST RANGE
Nuclear Hardness Critical FeatureNONHARDENED
Indicator TypeDIAL W/POINTER
Measurement Range+0.0 TO 30.0 OHMS SINGLE INDICATOR SECOND RANGE
Measurement Range+0.0 TO 3000.0 OHMS SINGLE INDICATOR FOURTH RANGE
Style DesignatorRECTANGULAR OR SQUARE
Measurement Range+0.0 TO 300.0 OHMS SINGLE INDICATOR THIRD RANGE
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6625-01-307-0881 (255)
HAZMATNo
Shelf Life Code0
Criticality CodeU
Unit of IssueEA
SMR CodeVU
Weight20.0000 lbs
Cube4.1140 cu ft
Verified Substitutes 10
6625-01-307-0881255 SUCCESSOR
Fieldmeter,electrostatic
Digital Alert Systems, Inc. Dba Digital Alert Systems Inc
6625-01-346-94112-55 SUCCESSOR
Indicator,phase Sequence
Automation Products Group, Inc.
6625-00-034-0540 INTERCHANGEABLE
Vibroground
6625-00-063-88283200586-9 INTERCHANGEABLE
Voltmeter
Cosmodyne, Llc Dba Cosmodyne Llc
6625-00-063-88303200586-11 INTERCHANGEABLE
Voltmeter
Cosmodyne, Llc Dba Cosmodyne Llc
6625-00-063-88323200586-15 INTERCHANGEABLE
Ammeter
Cosmodyne, Llc Dba Cosmodyne Llc
5945-00-188-5631 INTERCHANGEABLE
Relay,electromagnetic
5930-00-504-6071 INTERCHANGEABLE
Switch,toggle
6625-01-092-1198260-8 INTERCHANGEABLE
Multimeter
Simpson Electric Company, Inc.
1560-01-165-5945LE483-0003-0001 INTERCHANGEABLE
Plate,structural,aircraft
The Boeing Company Div Legacy Am&m
Cross-Reference Index
Part NumberManufacturer
255 Associated Research Incorporated (USA)
255A Associated Research Incorporated (USA)
Related Parts
SUCCESSOR 6625-01-307-0881 Fieldmeter,electrostatic · 255
6625-01-346-9411SUCCESSOR
INDICATOR,PHASE SEQUENCE
2-55
6625-00-034-0540INTERCHANGEABLE
VIBROGROUND
6625-00-063-8828INTERCHANGEABLE
VOLTMETER
3200586-9
6625-00-063-8830INTERCHANGEABLE
VOLTMETER
3200586-11
6625-00-063-8832INTERCHANGEABLE
AMMETER
3200586-15
5945-00-188-5631INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5930-00-504-6071INTERCHANGEABLE
SWITCH,TOGGLE
6625-01-092-1198INTERCHANGEABLE
MULTIMETER
260-8
1560-01-165-5945INTERCHANGEABLE
PLATE,STRUCTURAL,AIRCRAFT
LE483-0003-0001

Frequently Asked Questions

What is NSN 6625-00-155-6030?

NSN 6625-00-155-6030 is a Ohmmeter, manufactured by Associated Research Incorporated, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-155-6030?

NSN 6625-00-155-6030 has 2 cross-referenced part numbers: 255 (Associated Research Incorporated), 255A (Associated Research Incorporated).

What NSN replaces 6625-00-155-6030?

There are 10 known substitutes for 6625-00-155-6030: 6625-01-307-0881, 6625-01-346-9411, 6625-00-034-0540 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 255?

Key specifications for 255: Circuit Attachment Method and Quantity: 2 WIRE LEAD; Operating Voltage Rating in Volts: 1.500 DC NOMINAL; Power Source: INTERNAL; Measurement Range: +0.0 TO 3.0 OHMS SINGLE INDICATOR FIRST RANGE. 30 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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