PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

53RNAmmeter

Jewell Instruments Llc · NSN 6625-00-539-8348 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-539-8348 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-539-8348. Primary manufacturer part number: 53RN.
Features
  • Ammeter — FSC 6625
  • FSC Application Data: TEST SET,ELECT. EQUIP.
  • Meter Depth Behind Mounting Flange: 1.156 INCHES NOMINAL IN
  • Mounting Hole Diameter: 0.150 INCHES NOMINAL IN
  • Mounting Arrangement Style: THREE HOLE/STUD BOLT CIRCLE
  • Overall Diameter: 3.500 INCHES NOMINAL IN
  • Meter Body Diameter Behind Mounting Flange: 2.734 INCHES NOMINAL IN
  • Circuit Attachment Method and Quantity: 2 SOLDER STUD
Applications
  • Applications requiring Plastic construction
General Description

The Ammeter, cataloged under National Stock Number 6625-00-539-8348, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Jewell Instruments Llc. Government technical data includes 28 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-539-8348
Primary Part Number53RN
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerJewell Instruments Llc
StatusACTIVE
FSC Application DataTEST SET,ELECT. EQUIP.
Meter Depth Behind Mounting Flange1.156 INCHES NOMINAL IN
Mounting Hole Diameter0.150 INCHES NOMINAL IN
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Overall Diameter3.500 INCHES NOMINAL IN
Meter Body Diameter Behind Mounting Flange2.734 INCHES NOMINAL IN
Circuit Attachment Method and Quantity2 SOLDER STUD
Scale Division Quantity50 SINGLE INDICATOR SINGLE RANGE
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Installation DesignPANEL
Style DesignatorROUND FLUSH MTG
Mounting Bolt Circle Diameter3.160 INCHES NOMINAL IN
ColorUNABLE TO DECODE
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Movement TypeMOVING IRON VANE
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Measurement Range+0.0 TO 50.0 MILLIAMPERES, DC SINGLE INDICATOR SINGLE RANGE
Reliability IndicatorNOT ESTABLISHED
Circuit Current for Which DesignedDC
MaterialPLASTIC
FSC Application DataTEST SET,ELECT. EQUIP.
Meter Depth Behind Mounting Flange1.156 INCHES NOMINAL IN
Mounting Hole Diameter0.150 INCHES NOMINAL IN
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Overall Diameter3.500 INCHES NOMINAL IN
Meter Body Diameter Behind Mounting Flange2.734 INCHES NOMINAL IN
Circuit Attachment Method and Quantity2 SOLDER STUD
Scale Division Quantity50 SINGLE INDICATOR SINGLE RANGE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeLN
Verified Substitutes 9
6625-00-992-48142270609 SUCCESSOR
Voltmeter
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6625-00-234-3094 INTERCHANGEABLE
Voltmeter
6625-00-504-232453RN INTERCHANGEABLE
Meter,arbitrary Scale
Jewell Instruments Llc
6625-00-553-1577 INTERCHANGEABLE
Ammeter
6625-00-669-5069SCD6483 INTERCHANGEABLE
Multimeter
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6625-00-812-0833 INTERCHANGEABLE
Ammeter
6625-00-816-7121 INTERCHANGEABLE
Meter,arbitrary Scale
6625-00-984-7249 INTERCHANGEABLE
Ammeter
6625-01-010-569953RN-0-500UADC INTERCHANGEABLE
Ammeter
Jewell Instruments Llc
Cross-Reference Index
Part NumberManufacturer
53RN Jewell Instruments Llc (USA)
Related Parts
6625-00-992-4814SUCCESSOR
VOLTMETER
2270609
6625-00-234-3094INTERCHANGEABLE
VOLTMETER
6625-00-504-2324INTERCHANGEABLE
METER,ARBITRARY SCALE
53RN
6625-00-553-1577INTERCHANGEABLE
AMMETER
6625-00-669-5069INTERCHANGEABLE
MULTIMETER
SCD6483
6625-00-812-0833INTERCHANGEABLE
AMMETER
6625-00-816-7121INTERCHANGEABLE
METER,ARBITRARY SCALE
6625-00-984-7249INTERCHANGEABLE
AMMETER
6625-01-010-5699INTERCHANGEABLE
AMMETER
53RN-0-500UADC

Frequently Asked Questions

What is NSN 6625-00-539-8348?

NSN 6625-00-539-8348 is a Ammeter, manufactured by Jewell Instruments Llc, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-539-8348?

NSN 6625-00-539-8348 has 1 cross-referenced part number: 53RN (Jewell Instruments Llc).

What NSN replaces 6625-00-539-8348?

There are 9 known substitutes for 6625-00-539-8348: 6625-00-992-4814, 6625-00-234-3094, 6625-00-504-2324 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 53RN?

Key specifications for 53RN: FSC Application Data: TEST SET,ELECT. EQUIP.; Meter Depth Behind Mounting Flange: 1.156 INCHES NOMINAL IN; Mounting Hole Diameter: 0.150 INCHES NOMINAL IN; Mounting Arrangement Style: THREE HOLE/STUD BOLT CIRCLE. 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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