PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MR49W300DCAAHAmmeter

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6625-01-150-4088 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-01-150-4088 — this item is cataloged by the U.S. Government under National Stock Number 6625-01-150-4088. Primary manufacturer part number: MR49W300DCAAH.
Features
  • Ammeter — FSC 6625
  • Criticality Code Justification: ZZZW
  • Meter Depth Behind Mounting Flange: 9.000 INCHES NOMINAL IN
  • Style Designator: RECTANGULAR FLUSH MTG
  • Material: PLASTIC
  • Meter Body Diameter Behind Mounting Flange: 3.980 INCHES NOMINAL IN
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 3.376 INCHES NOMINAL IN
  • Mounting Stud Diameter: 0.312 INCHES NOMINAL IN
Applications
  • Applications requiring Plastic construction
General Description

The Ammeter, cataloged under National Stock Number 6625-01-150-4088, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 25 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-01-150-4088
Primary Part NumberMR49W300DCAAH
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Criticality Code JustificationZZZW
Meter Depth Behind Mounting Flange9.000 INCHES NOMINAL IN
Style DesignatorRECTANGULAR FLUSH MTG
MaterialPLASTIC
Meter Body Diameter Behind Mounting Flange3.980 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width3.376 INCHES NOMINAL IN
Mounting Stud Diameter0.312 INCHES NOMINAL IN
Mounting Facility Type and Quantity4 THREADED STUD(S)
Departure From Cited DocumentMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Circuit Current for Which DesignedDC
Center to Center Distance Between Mounting Facilities Parallel to Length3.376 INCHES NOMINAL IN
Mounting Arrangement StyleFOUR HOLE/STUD RECTANGULAR/SQUARE
Mounting Stud Length0.875 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
Dial Scale Marking ColorWHITE SINGLE INDICATOR SINGLE RANGE
Criticality Code JustificationZZZW
Meter Depth Behind Mounting Flange9.000 INCHES NOMINAL IN
Style DesignatorRECTANGULAR FLUSH MTG
MaterialPLASTIC
Meter Body Diameter Behind Mounting Flange3.980 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width3.376 INCHES NOMINAL IN
Mounting Stud Diameter0.312 INCHES NOMINAL IN
Mounting Facility Type and Quantity4 THREADED STUD(S)
Departure From Cited DocumentMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Circuit Current for Which DesignedDC
Center to Center Distance Between Mounting Facilities Parallel to Length3.376 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeBL
Unit of IssueEA
SMR CodeD
Weight3.8000 lbs
Cube0.1580 cu ft
Verified Substitutes 1
6625-00-196-8775 INTERCHANGEABLE
Ammeter
Cross-Reference Index
Part NumberManufacturer
MR49W300DCAAH Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6625-00-196-8775INTERCHANGEABLE
AMMETER

Frequently Asked Questions

What is NSN 6625-01-150-4088?

NSN 6625-01-150-4088 is a Ammeter, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-01-150-4088?

NSN 6625-01-150-4088 has 1 cross-referenced part number: MR49W300DCAAH (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6625-01-150-4088?

There is 1 known substitute for 6625-01-150-4088: 6625-00-196-8775. Verify interchangeability with system specifications before substitution.

What are the specifications of MR49W300DCAAH?

Key specifications for MR49W300DCAAH: Overall Height: 4.250 INCHES MINIMUM AND 4.750 INCHES MAXIMUM IN; Criticality Code Justification: ZZZW; Meter Depth Behind Mounting Flange: 9.000 INCHES NOMINAL IN; Style Designator: RECTANGULAR FLUSH MTG. 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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