PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

631-14931Meter,standing Wave Ratio

Phaostron Instrument and Electronic Company · NSN 6625-00-465-2138 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-465-2138 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-465-2138. Primary manufacturer part number: 631-14931.
Features
  • Meter,standing Wave Ratio — FSC 6625
  • Mounting Bolt Circle Diameter: 3.160 INCHES NOMINAL IN
  • Meter Depth Behind Mounting Flange: 1.660 INCHES NOMINAL IN
  • Movement Type: MOVING COIL, PERMANENT MAGNET
  • Nuclear Hardness Critical Feature: NONHARDENED
  • Meter Body Diameter Behind Mounting Flange: 2.800 INCHES MAXIMUM IN
  • Style Designator: ROUND FLUSH MTG
  • Circuit Attachment Method and Quantity: 2 THREADED STUD
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Meter,standing Wave Ratio, cataloged under National Stock Number 6625-00-465-2138, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Phaostron Instrument and Electronic Company. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-465-2138
Primary Part Number631-14931
Item NameMeter,standing Wave Ratio
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerPhaostron Instrument and Electronic Company
StatusACTIVE
Mounting Bolt Circle Diameter3.160 INCHES NOMINAL IN
Meter Depth Behind Mounting Flange1.660 INCHES NOMINAL IN
Movement TypeMOVING COIL, PERMANENT MAGNET
Nuclear Hardness Critical FeatureNONHARDENED
Meter Body Diameter Behind Mounting Flange2.800 INCHES MAXIMUM IN
Style DesignatorROUND FLUSH MTG
Circuit Attachment Method and Quantity2 THREADED STUD
Movement Suspension MethodJEWEL PIVOT BASE
Features ProvidedZERO ADJUSTER
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Scale Selection MethodTERMINAL
Installation DesignPANEL
Mounting Hole Diameter0.143 INCHES MINIMUM AND 0.157 INCHES MAXIMUM IN
Overall Diameter3.510 INCHES MAXIMUM IN
Environmental ProtectionSHOCK RESISTANT AND VIBRATION RESISTANT
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Indicator TypeDIAL W/POINTER
Sensitivity Rating100.0 MICROAMPERES
Mounting Bolt Circle Diameter3.160 INCHES NOMINAL IN
Meter Depth Behind Mounting Flange1.660 INCHES NOMINAL IN
Movement TypeMOVING COIL, PERMANENT MAGNET
Nuclear Hardness Critical FeatureNONHARDENED
Meter Body Diameter Behind Mounting Flange2.800 INCHES MAXIMUM IN
Style DesignatorROUND FLUSH MTG
Circuit Attachment Method and Quantity2 THREADED STUD
Movement Suspension MethodJEWEL PIVOT BASE
Features ProvidedZERO ADJUSTER
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 2
5999-00-577-74186044863 SUCCESSOR
Clip,electrical
Lockheed Martin Corporation Div Rotary and Mission Systems
5999-01-295-5489645A713H04 SUCCESSOR
Heat Sink,electrical-Electronic
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
Cross-Reference Index
Part NumberManufacturer
61-14931 Phaostron Instrument and Electronic Company (USA)
631 Phaostron Instrument and Electronic Company (USA)
378-0373 Continental Electronics Corp (USA)
631-14931 PRIMARY Phaostron Instrument and Electronic Company (USA)
Related Parts
5999-00-577-7418SUCCESSOR
CLIP,ELECTRICAL
6044863
5999-01-295-5489SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
645A713H04

Frequently Asked Questions

What is NSN 6625-00-465-2138?

NSN 6625-00-465-2138 is a Meter,standing Wave Ratio, manufactured by Phaostron Instrument and Electronic Company, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-465-2138?

NSN 6625-00-465-2138 has 4 cross-referenced part numbers: 61-14931 (Phaostron Instrument and Electronic Company), 631 (Phaostron Instrument and Electronic Company), 378-0373 (Continental Electronics Corp), 631-14931 (Phaostron Instrument and Electronic Company).

What NSN replaces 6625-00-465-2138?

There are 2 known substitutes for 6625-00-465-2138: 5999-00-577-7418, 5999-01-295-5489. Verify interchangeability with system specifications before substitution.

What are the specifications of 631-14931?

Key specifications for 631-14931: Mounting Bolt Circle Diameter: 3.160 INCHES NOMINAL IN; Meter Depth Behind Mounting Flange: 1.660 INCHES NOMINAL IN; Movement Type: MOVING COIL, PERMANENT MAGNET; 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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