PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

506Multimeter

Hc Protek · NSN 6625-01-462-6376 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-01-462-6376 — this item is cataloged by the U.S. Government under National Stock Number 6625-01-462-6376. Primary manufacturer part number: 506.
Features
  • Multimeter — FSC 6625
  • Display Digit Quantity: 4
  • Relationship to Similar Equipment: SIMILAR TO PROTEC 505 HOWEVER, PROTEC 506 INCLUDES RS-232 INTERFACE
  • Circuit Current for Which Designed: DC
  • Display Color: RED ALL INDICATORS ALL RANGES
  • Measurement Range: +0.4 TO 1.0 VOLTS, AC SINGLE INDICATOR SECOND RANGE
  • Style Designator: HAND-HELD
  • Measurement Range: -31.6 TO 59.7 DECIBELS SINGLE INDICATOR FIRST RANGE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Multimeter, cataloged under National Stock Number 6625-01-462-6376, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Hc Protek. 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6625-01-462-6376
Primary Part Number506
Item NameMultimeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerHc Protek
StatusACTIVE
Display Digit Quantity4
Relationship to Similar EquipmentSIMILAR TO PROTEC 505 HOWEVER, PROTEC 506 INCLUDES RS-232 INTERFACE
Circuit Current for Which DesignedDC
Display ColorRED ALL INDICATORS ALL RANGES
Measurement Range+0.4 TO 1.0 VOLTS, AC SINGLE INDICATOR SECOND RANGE
Style DesignatorHAND-HELD
Measurement Range-31.6 TO 59.7 DECIBELS SINGLE INDICATOR FIRST RANGE
Circuit Attachment Method and Quantity3 RECEPTACLE, COAXIAL
Measurement Range+0.4 TO 1.0 VOLTS, DC SINGLE INDICATOR THIRD RANGE
Installation DesignHANDHELD
Accuracy RatingPORM 0.01 PCT, PORM 1.0 D ALL INDICATORS ALL RANGES
Operating Voltage Rating in Volts9.0 DC NOMINAL
Indicator TypeDIGITAL DISPLAY
Furnished Items and QuantityTEST LEADS 1; OPERATING MANUAL 1; 9V INSTALLED BATTERY 1; HOLSTER 1; TEMPERATURE ADAPTER 1; TYPE "K" TEMPERATURE PROBE 1; RS-232 CABLE AND SOFTWARE 1 V
Display TypeLIQUID CRYSTAL
Display Digit Quantity4
Relationship to Similar EquipmentSIMILAR TO PROTEC 505 HOWEVER, PROTEC 506 INCLUDES RS-232 INTERFACE
Circuit Current for Which DesignedDC
Display ColorRED ALL INDICATORS ALL RANGES
Measurement Range+0.4 TO 1.0 VOLTS, AC SINGLE INDICATOR SECOND RANGE
Style DesignatorHAND-HELD
Measurement Range-31.6 TO 59.7 DECIBELS SINGLE INDICATOR FIRST RANGE
Circuit Attachment Method and Quantity3 RECEPTACLE, COAXIAL
Measurement Range+0.4 TO 1.0 VOLTS, DC SINGLE INDICATOR THIRD RANGE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
Ammeter
Ammeter
Meter,arbitrary Scale
Ammeter
Multimeter
Ammeter
6625-00-635-4180KS8157 SUCCESSOR
Ammeter
Lucent Technologies Inc Corporate Headquarters
Voltmeter
Meter,audio Level
Meter,audio Level
Cross-Reference Index
Part NumberManufacturer
PROTEC506 Hc Protek (USA)
506 PRIMARY Hc Protek (USA)
Related Parts
6625-00-186-8296SUCCESSOR
AMMETER
6625-00-440-6548SUCCESSOR
AMMETER
6625-00-504-2980SUCCESSOR
METER,ARBITRARY SCALE
6625-00-538-8996SUCCESSOR
AMMETER
6625-00-571-4459SUCCESSOR
MULTIMETER
6625-00-602-3951SUCCESSOR
AMMETER
6625-00-635-4180SUCCESSOR
AMMETER
KS8157
6625-00-643-0577SUCCESSOR
VOLTMETER
6625-00-643-3146SUCCESSOR
METER,AUDIO LEVEL
6625-00-643-3150SUCCESSOR
METER,AUDIO LEVEL
6625-00-649-3660SUCCESSOR
AMMETER
22454
6625-00-669-3079SUCCESSOR
AMMETER

Frequently Asked Questions

What is NSN 6625-01-462-6376?

NSN 6625-01-462-6376 is a Multimeter, manufactured by Hc Protek, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-01-462-6376?

NSN 6625-01-462-6376 has 2 cross-referenced part numbers: PROTEC506 (Hc Protek), 506 (Hc Protek).

What NSN replaces 6625-01-462-6376?

There are 12 known substitutes for 6625-01-462-6376: 6625-00-186-8296, 6625-00-440-6548, 6625-00-504-2980 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 506?

Key specifications for 506: Display Digit Quantity: 4; Overall Width: 3.500 INCHES NOMINAL IN; Relationship to Similar Equipment: SIMILAR TO PROTEC 505 HOWEVER, PROTEC 506 INCLUDES RS-232 INTERFACE; Circuit Current for Which Designed: DC. 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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