PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

301-30AMeter,audio Level

Custom Metering Company Inc · NSN 6625-00-843-9171 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-843-9171 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-843-9171. Primary manufacturer part number: 301-30A.
Features
  • Meter,audio Level — FSC 6625
  • Accuracy in Percent: -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
  • Power Source: EXTERNAL
  • Material: PLASTIC
  • Color: UNABLE TO DECODE
  • Mounting Facility Type and Quantity: 4 FLANGE
  • Style Designator: ROUND FLUSH MTG W/4 TABS
  • Nuclear Hardness Critical Feature: NONHARDENED
Applications
  • Applications requiring Plastic construction
General Description

The Meter,audio Level, cataloged under National Stock Number 6625-00-843-9171, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Custom Metering Company Inc. Government technical data includes 26 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-843-9171
Primary Part Number301-30A
Item NameMeter,audio Level
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerCustom Metering Company Inc
StatusACTIVE
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Power SourceEXTERNAL
MaterialPLASTIC
ColorUNABLE TO DECODE
Mounting Facility Type and Quantity4 FLANGE
Style DesignatorROUND FLUSH MTG W/4 TABS
Nuclear Hardness Critical FeatureNONHARDENED
Special MarkingsRED BAND FROM 0 TO PLUS 3 VU ZERO TO PLUS 3 CHARACTERS INCLUDING ASSOCIATED VU TITLE MARKED IN RED,0 TO 100 PCT MARKING IN BLACK BELOW VU SCALE
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Measurement Range+0.0 TO 100.0 PERCENT MODULATION SINGLE INDICATOR FIRST RANGE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Movement TypeMOVING COIL, PERMANENT MAGNET
Features ProvidedZERO ADJUSTER
Indicator TypeDIAL W/POINTER
Installation DesignPANEL
Center to Center Distance Between Mounting Facilities Parallel to Length2.240 INCHES NOMINAL IN
Movement Suspension MethodJEWEL PIVOT BASE
Circuit Attachment Method and Quantity2 THREADED STUD
Meter Body Diameter Behind Mounting Flange2.750 INCHES NOMINAL IN
Meter Depth Behind Mounting Flange1.360 INCHES NOMINAL IN
Scale Graduation TypeNONLINEAR SINGLE INDICATOR SINGLE RANGE
Center to Center Distance Between Mounting Facilities Parallel to Width2.240 INCHES NOMINAL IN
Mounting Arrangement StyleFOUR HOLE/STUD RECTANGULAR/SQUARE
Measurement Range+3.0 TO 20.0 VOICE UNITS SINGLE INDICATOR SECOND RANGE
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Power SourceEXTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6625-00-643-2816 (908-304)
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeLN
Verified Substitutes 1
6625-00-643-2816908-304 SUCCESSOR
Meter,audio Level
Jewell Instruments Llc
Cross-Reference Index
Part NumberManufacturer
301-30A PRIMARY Custom Metering Company Inc (USA)
301-30A Metermaster Inc Metermod Div (USA)
301-30A Solartron Electronics Inc Weston Instruments Div (USA)
Related Parts
SUCCESSOR 6625-00-643-2816 Meter,audio Level · 908-304

Frequently Asked Questions

What is NSN 6625-00-843-9171?

NSN 6625-00-843-9171 is a Meter,audio Level, manufactured by Custom Metering Company Inc, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-843-9171?

NSN 6625-00-843-9171 has 3 cross-referenced part numbers: 301-30A (Custom Metering Company Inc), 301-30A (Metermaster Inc Metermod Div), 301-30A (Solartron Electronics Inc Weston Instruments Div).

What NSN replaces 6625-00-843-9171?

There is 1 known substitute for 6625-00-843-9171: 6625-00-643-2816. Verify interchangeability with system specifications before substitution.

What are the specifications of 301-30A?

Key specifications for 301-30A: Accuracy in Percent: -2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE; Overall Length: 1.485 INCHES NOMINAL IN; Power Source: EXTERNAL; Material: PLASTIC. 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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