PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

27BVoltmeter

Simpson Electric Company, Inc. · NSN 6625-00-553-0406 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-553-0406 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-553-0406. Primary manufacturer part number: 27B.
Features
  • Voltmeter — FSC 6625
  • Scale Division Quantity: 50 SINGLE INDICATOR SINGLE RANGE
  • Movement Type: MOVING COIL, PERMANENT MAGNET
  • Power Source: EXTERNAL
  • Nuclear Hardness Critical Feature: NONHARDENED
  • Color: UNABLE TO DECODE
  • Mounting Arrangement Style: FOUR HOLE/STUD RECTANGULAR/SQUARE
  • FSC Application Data: TEST SET,ELECT. EQUIP.
Applications
  • Applications requiring Plastic construction
General Description

The Voltmeter, cataloged under National Stock Number 6625-00-553-0406, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Simpson Electric Company, Inc.. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-553-0406
Primary Part Number27B
Item NameVoltmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerSimpson Electric Company, Inc.
StatusACTIVE
Scale Division Quantity50 SINGLE INDICATOR SINGLE RANGE
Movement TypeMOVING COIL, PERMANENT MAGNET
Power SourceEXTERNAL
Nuclear Hardness Critical FeatureNONHARDENED
ColorUNABLE TO DECODE
Mounting Arrangement StyleFOUR HOLE/STUD RECTANGULAR/SQUARE
FSC Application DataTEST SET,ELECT. EQUIP.
Style DesignatorRECTANGULAR FLUSH MTG
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Mounting Stud Diameter0.112 INCHES NOMINAL IN
Circuit Attachment Method and Quantity2 THREADED STUD
Meter Body Diameter Behind Mounting Flange2.750 INCHES NOMINAL IN
Movement Suspension MethodJEWEL PIVOT BASE
Sensitivity Rating2000.0 OHMS PER VOLT
Installation DesignPANEL
Meter Depth Behind Mounting Flange1.375 INCHES NOMINAL IN
Indicator TypeDIAL W/POINTER
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
Mounting Stud Length0.688 INCHES NOMINAL IN
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Center to Center Distance Between Mounting Facilities Parallel to Length2.260 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width2.250 INCHES NOMINAL IN
Mounting Facility Type and Quantity4 THREADED STUD(S)
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Features ProvidedZERO ADJUSTER
Circuit Current for Which DesignedDC
MaterialPLASTIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeY
Verified Substitutes 11
6625-00-643-1468450-0089-00 SUCCESSOR
Ammeter
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5915-00-030-7141 INTERCHANGEABLE
Network,hybrid Circuit
6625-00-188-3739327T0-50DCUA INTERCHANGEABLE
Ammeter
Triplett (bluffton) Corporation Dba Lfe Instruments
5310-00-208-2823S8201-838068-173 INTERCHANGEABLE
Nut,plain,round
Naval Ship Systems Command
6130-00-250-2236 INTERCHANGEABLE
Rectifier,metallic
5310-00-262-570927B INTERCHANGEABLE
Washer,flat
Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
6625-00-844-6450450-0100-000 INTERCHANGEABLE
Ammeter
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
6625-00-856-0930458-0470-000 INTERCHANGEABLE
Ammeter
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
6625-00-860-9283458-0469-000 INTERCHANGEABLE
Ammeter
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
6625-00-860-9284 INTERCHANGEABLE
Ammeter
Cross-Reference Index
Part NumberManufacturer
27B Simpson Electric Company, Inc. (USA)
458-0272-000 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
458-0272-00 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
Related Parts
6625-00-643-1468SUCCESSOR
AMMETER
450-0089-00
5915-00-030-7141INTERCHANGEABLE
NETWORK,HYBRID CIRCUIT
6625-00-188-3739INTERCHANGEABLE
AMMETER
327T0-50DCUA
5310-00-208-2823INTERCHANGEABLE
NUT,PLAIN,ROUND
S8201-838068-173
6130-00-250-2236INTERCHANGEABLE
RECTIFIER,METALLIC
5310-00-262-5709INTERCHANGEABLE
WASHER,FLAT
27B
6625-00-844-6450INTERCHANGEABLE
AMMETER
450-0100-000
6625-00-856-0930INTERCHANGEABLE
AMMETER
458-0470-000
6625-00-860-9283INTERCHANGEABLE
AMMETER
458-0469-000
6625-00-860-9284INTERCHANGEABLE
AMMETER
3110-01-564-5813INTERCHANGEABLE
BALL,BEARING

Frequently Asked Questions

What is NSN 6625-00-553-0406?

NSN 6625-00-553-0406 is a Voltmeter, manufactured by Simpson Electric Company, Inc., classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-553-0406?

NSN 6625-00-553-0406 has 3 cross-referenced part numbers: 27B (Simpson Electric Company, Inc.), 458-0272-000 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 458-0272-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).

What NSN replaces 6625-00-553-0406?

There are 11 known substitutes for 6625-00-553-0406: 6625-00-643-1468, 5915-00-030-7141, 6625-00-188-3739 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 27B?

Key specifications for 27B: Scale Division Quantity: 50 SINGLE INDICATOR SINGLE RANGE; Movement Type: MOVING COIL, PERMANENT MAGNET; Power Source: EXTERNAL; Nuclear Hardness Critical Feature: NONHARDENED. 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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