PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4226Calibrator,audio Level

Spectris Technologies Inc. · NSN 6625-01-478-2555 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-01-478-2555 — this item is cataloged by the U.S. Government under National Stock Number 6625-01-478-2555. Primary manufacturer part number: 4226.
Features
  • Calibrator,audio Level — FSC 6625
  • Calibration Accuracy Rating: POM 0.1DB FOR EQUAL TO OR LESS THAN 8KHZ, POM 0.2DB FOR GREATER THAN 8KHZ KHz
  • DC Voltage Rating: 0.5 VOLTS MINIMUM AND 1.5 VOLTS MAXIMUM
  • Calibration Accuracy Rating: POM 0.1DB FOR EQUAL TO OR LESS THAN 8KHZ, POM 0.2DB FOR GREATER THAN 8KHZ KHz
  • DC Voltage Rating: 0.5 VOLTS MINIMUM AND 1.5 VOLTS MAXIMUM
  • 1 verified cross-reference
  • Primary manufacturer: Spectris Technologies Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Calibrator,audio Level, cataloged under National Stock Number 6625-01-478-2555, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Spectris Technologies Inc.. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-01-478-2555
Primary Part Number4226
Item NameCalibrator,audio Level
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerSpectris Technologies Inc.
StatusACTIVE
Calibration Accuracy RatingPOM 0.1DB FOR EQUAL TO OR LESS THAN 8KHZ, POM 0.2DB FOR GREATER THAN 8KHZ KHz
DC Voltage Rating0.5 VOLTS MINIMUM AND 1.5 VOLTS MAXIMUM
Calibration Accuracy RatingPOM 0.1DB FOR EQUAL TO OR LESS THAN 8KHZ, POM 0.2DB FOR GREATER THAN 8KHZ KHz
DC Voltage Rating0.5 VOLTS MINIMUM AND 1.5 VOLTS MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeS
Unit of IssueEA
SMR CodeJS
Verified Substitutes 12
Voltmeter
6145-00-780-33069176578 SUCCESSOR
Cable,special Purpose,electrical
Us Army Aviation and Missile Command
5945-00-061-3228 INTERCHANGEABLE
Relay,electromagnetic
4220-00-141-19094226-00 INTERCHANGEABLE
Knife,diver's
Aqualung Usa, Inc
5330-00-256-1022123-1418254ALTAPC4 INTERCHANGEABLE
Gasket
Naval Ship Systems Command
5920-00-284-7074 INTERCHANGEABLE
Fuseholder,block
5305-00-492-31474226 INTERCHANGEABLE
Setscrew
Fwd Seagrave Holdings Lp
6520-00-547-71604226 INTERCHANGEABLE
Wheel,abrasive
Dedeco International Sales, Inc.
2910-00-726-7975 INTERCHANGEABLE
Filter,fluid
5935-00-755-07539026360 INTERCHANGEABLE
Connector,receptacle,electrical
Us Army Aviation and Missile Command
Cross-Reference Index
Part NumberManufacturer
4226 PRIMARY Spectris Technologies Inc. (USA)
Related Parts
6625-00-241-0816SUCCESSOR
VOLTMETER
6145-00-780-3306SUCCESSOR
CABLE,SPECIAL PURPOSE,ELECTRICAL
9176578
5945-00-061-3228INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
4220-00-141-1909INTERCHANGEABLE
KNIFE,DIVER'S
4226-00
5330-00-256-1022INTERCHANGEABLE
GASKET
123-1418254ALTAPC4
5920-00-284-7074INTERCHANGEABLE
FUSEHOLDER,BLOCK
5305-00-492-3147INTERCHANGEABLE
SETSCREW
4226
6520-00-547-7160INTERCHANGEABLE
WHEEL,ABRASIVE
4226
2910-00-726-7975INTERCHANGEABLE
FILTER,FLUID
5935-00-755-0753INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
9026360
3110-00-947-0079INTERCHANGEABLE
BEARING,BALL,DUPLEX
3TAWR4-10-65
6210-01-138-0271INTERCHANGEABLE
LIGHT,INDICATOR
4226

Frequently Asked Questions

What is NSN 6625-01-478-2555?

NSN 6625-01-478-2555 is a Calibrator,audio Level, manufactured by Spectris Technologies Inc., classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-01-478-2555?

NSN 6625-01-478-2555 has 1 cross-referenced part number: 4226 (Spectris Technologies Inc.).

What NSN replaces 6625-01-478-2555?

There are 12 known substitutes for 6625-01-478-2555: 6625-00-241-0816, 6145-00-780-3306, 5945-00-061-3228 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4226?

Key specifications for 4226: Overall Width: 4.900 INCHES NOMINAL IN; Overall Height: 2.400 INCHES NOMINAL IN; Calibration Accuracy Rating: POM 0.1DB FOR EQUAL TO OR LESS THAN 8KHZ, POM 0.2DB FOR GREATER THAN 8KHZ KHz; DC Voltage Rating: 0.5 VOLTS MINIMUM AND 1.5 VOLTS MAXIMUM. 14 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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