PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

KT221178Ammeter

Kearfott Corporation Div Guidance and Navigation Division · NSN 6625-00-651-5332 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-651-5332 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-651-5332. Primary manufacturer part number: KT221178.
Features
  • Ammeter — FSC 6625
  • Dial Scale Marking Color: WHITE SINGLE INDICATOR SINGLE RANGE
  • Accuracy in Percent: -10.0 TO 10.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
  • Color: UNABLE TO DECODE
  • Style Designator: RECTANGULAR FLUSH MTG
  • Movement Suspension Method: JEWEL PIVOT BASE
  • Circuit Attachment Method and Quantity: 2 SOLDER LUG
  • Measurement Range: -30.0 TO 30.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ammeter, cataloged under National Stock Number 6625-00-651-5332, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Kearfott Corporation Div Guidance and Navigation Division. Government technical data includes 26 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. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-651-5332
Primary Part NumberKT221178
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerKearfott Corporation Div Guidance and Navigation Division
StatusACTIVE
Dial Scale Marking ColorWHITE SINGLE INDICATOR SINGLE RANGE
Accuracy in Percent-10.0 TO 10.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
ColorUNABLE TO DECODE
Style DesignatorRECTANGULAR FLUSH MTG
Movement Suspension MethodJEWEL PIVOT BASE
Circuit Attachment Method and Quantity2 SOLDER LUG
Measurement Range-30.0 TO 30.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE
Installation DesignPANEL
Meter Body Diameter Behind Mounting Flange1.312 INCHES NOMINAL IN
Movement TypeMOVING COIL, PERMANENT MAGNET
Meter Depth Behind Mounting Flange0.812 INCHES NOMINAL IN
Mounting Arrangement StyleFOUR HOLE/STUD RECTANGULAR/SQUARE
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S)
Circuit Current for Which DesignedDC
Center to Center Distance Between Mounting Facilities Parallel to Length1.312 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.312 INCHES NOMINAL IN
Mounting Hole Diameter0.125 INCHES NOMINAL IN
Dial Scale Marking ColorWHITE SINGLE INDICATOR SINGLE RANGE
Accuracy in Percent-10.0 TO 10.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
ColorUNABLE TO DECODE
Style DesignatorRECTANGULAR FLUSH MTG
Movement Suspension MethodJEWEL PIVOT BASE
Circuit Attachment Method and Quantity2 SOLDER LUG
Measurement Range-30.0 TO 30.0 AMPERES, DC SINGLE INDICATOR SINGLE RANGE
Installation DesignPANEL
Meter Body Diameter Behind Mounting Flange1.312 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Verified Substitutes 12
5999-00-677-983911066463-001 SUCCESSOR
Clip,electrical
Us Army Aviation and Missile Command
6625-00-102-964110163371 INTERCHANGEABLE
Meter,null
Us Army Aviation and Missile Command
6625-00-504-08901801260 INTERCHANGEABLE
Meter,arbitrary Scale
Northrop Grumman Systems Corporation
6625-00-508-143290-2009 INTERCHANGEABLE
Meter,arbitrary Scale
Crane Electronics, Inc.
3110-00-580-9301CYRB252 INTERCHANGEABLE
Bearing,ball,annular
Ge Aviation Systems Llc Dba Ge Aviation Systems Llc
6625-00-649-3274 INTERCHANGEABLE
Ammeter
6625-00-683-9721 INTERCHANGEABLE
Ammeter
6625-00-704-6580557823-1 INTERCHANGEABLE
Ammeter
Raytheon Company
6625-00-809-9943 INTERCHANGEABLE
Meter,arbitrary Scale
6625-00-988-1693C088103-001 INTERCHANGEABLE
Meter,arbitrary Scale
Gyrodyne Co of America Inc
Cross-Reference Index
Part NumberManufacturer
KT221178 PRIMARY Kearfott Corporation Div Guidance and Navigation Division (USA)
HS1 Kearfott Corporation Div Guidance and Navigation Division (USA)
Related Parts
5999-00-677-9839SUCCESSOR
CLIP,ELECTRICAL
11066463-001
6625-00-102-9641INTERCHANGEABLE
METER,NULL
10163371
6625-00-504-0890INTERCHANGEABLE
METER,ARBITRARY SCALE
1801260
6625-00-508-1432INTERCHANGEABLE
METER,ARBITRARY SCALE
90-2009
3110-00-580-9301INTERCHANGEABLE
BEARING,BALL,ANNULAR
CYRB252
6625-00-649-3274INTERCHANGEABLE
AMMETER
6625-00-683-9721INTERCHANGEABLE
AMMETER
6625-00-704-6580INTERCHANGEABLE
AMMETER
557823-1
6625-00-809-9943INTERCHANGEABLE
METER,ARBITRARY SCALE
6625-00-988-1693INTERCHANGEABLE
METER,ARBITRARY SCALE
C088103-001
6625-01-041-3197INTERCHANGEABLE
METER,ARBITRARY SCALE
SM-C-867200
3610-01-073-3839INTERCHANGEABLE
HEADLINE TYPESETTER

Frequently Asked Questions

What is NSN 6625-00-651-5332?

NSN 6625-00-651-5332 is a Ammeter, manufactured by Kearfott Corporation Div Guidance and Navigation Division, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-651-5332?

NSN 6625-00-651-5332 has 2 cross-referenced part numbers: KT221178 (Kearfott Corporation Div Guidance and Navigation Division), HS1 (Kearfott Corporation Div Guidance and Navigation Division).

What NSN replaces 6625-00-651-5332?

There are 12 known substitutes for 6625-00-651-5332: 5999-00-677-9839, 6625-00-102-9641, 6625-00-504-0890 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of KT221178?

Key specifications for KT221178: Dial Scale Marking Color: WHITE SINGLE INDICATOR SINGLE RANGE; Accuracy in Percent: -10.0 TO 10.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE; Color: UNABLE TO DECODE; Overall Width: 1.750 INCHES NOMINAL IN. 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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