PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

221388Meter,arbitrary Scale

Raytheon Technical Services Company · NSN 6625-00-500-3882 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-500-3882 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-500-3882. Primary manufacturer part number: 221388.
Features
  • Meter,arbitrary Scale — FSC 6625
  • Surface Treatment: ENAMEL
  • Style Designator: RECTANGULAR FLUSH MTG
  • Special Markings: POS SIGN BY APPROPRIATE TERMINAL
  • Features Provided: EXTERNAL SHUNTING AND LUMINOUS SCALE MARKING AND ZERO ADJUSTER
  • Special Test Features: CONFORMS TO MIL-A-5125
  • Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S)
  • Unable to Decode: UNABLE TO DECODE
Applications
  • Applications requiring Steel construction
General Description

The Meter,arbitrary Scale, cataloged under National Stock Number 6625-00-500-3882, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Raytheon Technical Services Company. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-500-3882
Primary Part Number221388
Item NameMeter,arbitrary Scale
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerRaytheon Technical Services Company
StatusCANCELLED
Surface TreatmentENAMEL
Style DesignatorRECTANGULAR FLUSH MTG
Special MarkingsPOS SIGN BY APPROPRIATE TERMINAL
Features ProvidedEXTERNAL SHUNTING AND LUMINOUS SCALE MARKING AND ZERO ADJUSTER
Special Test FeaturesCONFORMS TO MIL-A-5125
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S)
Unable to DecodeUNABLE TO DECODE
Supplementary FeaturesRUGGEDIZED
Circuit Attachment Method and Quantity2 THREADED STUD
Indicator TypeDIAL W/POINTER
Scale Graduation TypeNONLINEAR SINGLE INDICATOR SINGLE RANGE
Movement Suspension MethodJEWEL PIVOT BASE
Furnished Items and QuantityNUT 4; RESISTOR 1
Movement TypeMOVING COIL, PERMANENT MAGNET
Nuclear Hardness Critical FeatureNONHARDENED
Criticality Code JustificationFEAT
MaterialSTEEL
Mounting Arrangement StyleFOUR HOLE/STUD RECTANGULAR/SQUARE
Installation DesignPANEL
ColorUNABLE TO DECODE
Meter Depth Behind Mounting Flange1.000 INCHES MAXIMUM IN
FSC Application DataTEST SET,ELECT. EQUIP.
Center to Center Distance Between Mounting Facilities Parallel to Length1.312 INCHES NOMINAL IN
Mounting Hole Diameter0.138 INCHES NOMINAL IN
Environmental ProtectionSHOCK RESISTANT AND VIBRATION RESISTANT
Surface FinishUNABLE TO DECODE
Circuit Current for Which DesignedDC
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor6625-00-025-7110 (476-0257-000)
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Weight0.4600 lbs
Cube0.0526 cu ft
Verified Substitutes 12
6625-00-025-7110476-0257-000 SUCCESSOR
Meter,arbitrary Scale
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
Ammeter
5998-01-072-13131011 SUCCESSOR
Extender Card,electronic Test
Leidos, Inc. Div Cyber and Information Solutions Services
6625-00-255-5870 INTERCHANGEABLE
Ammeter
6625-00-500-6518 INTERCHANGEABLE
Resistance Standard
6625-00-539-9868 INTERCHANGEABLE
Meter,arbitrary Scale
6625-00-612-3179C222650-3 INTERCHANGEABLE
Ammeter
Honeywell International Inc Dba Honeywell
6625-00-648-8485 INTERCHANGEABLE
Shunt,instrument
5985-00-688-7092128305 INTERCHANGEABLE
Waveguide Assembly
L3harris Technologies, Inc Div Space & Airborne Systems
6625-00-752-7557717202-18 INTERCHANGEABLE
Ammeter
Raytheon Company Div Rmd Strategic
Cross-Reference Index
Part NumberManufacturer
221388 Raytheon Technical Services Company (USA)
128308 Solartron Electronics Inc Weston Instruments Div (USA)
135-244 Jewell Instruments Llc (USA)
Z22R76 Ideal Precision Meter Co Dba Ideal Precision Meter Co (USA)
1011 Solartron Electronics Inc Weston Instruments Div (USA)
Related Parts
SUCCESSOR 6625-00-025-7110 Meter,arbitrary Scale · 476-0257-000
6625-00-437-3048SUCCESSOR
AMMETER
5998-01-072-1313SUCCESSOR
EXTENDER CARD,ELECTRONIC TEST
1011
6625-00-255-5870INTERCHANGEABLE
AMMETER
6625-00-500-6518INTERCHANGEABLE
RESISTANCE STANDARD
6625-00-539-9868INTERCHANGEABLE
METER,ARBITRARY SCALE
6625-00-612-3179INTERCHANGEABLE
AMMETER
C222650-3
6625-00-648-8485INTERCHANGEABLE
SHUNT,INSTRUMENT
5985-00-688-7092INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
128305
6625-00-752-7557INTERCHANGEABLE
AMMETER
717202-18
5985-00-754-7512INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
128308
5307-01-312-8720INTERCHANGEABLE
STUD,PLAIN

Frequently Asked Questions

What is NSN 6625-00-500-3882?

NSN 6625-00-500-3882 is a Meter,arbitrary Scale, manufactured by Raytheon Technical Services Company, classified under FSC 6625 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6625-00-500-3882?

NSN 6625-00-500-3882 has 5 cross-referenced part numbers: 221388 (Raytheon Technical Services Company), 128308 (Solartron Electronics Inc Weston Instruments Div), 135-244 (Jewell Instruments Llc), Z22R76 (Ideal Precision Meter Co Dba Ideal Precision Meter Co), 1011 (Solartron Electronics Inc Weston Instruments Div).

What NSN replaces 6625-00-500-3882?

There are 12 known substitutes for 6625-00-500-3882: 6625-00-025-7110, 6625-00-437-3048, 5998-01-072-1313 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 221388?

Key specifications for 221388: Special Features: CRITICAL APPLICATION; Surface Treatment: ENAMEL; Style Designator: RECTANGULAR FLUSH MTG; Special Markings: POS SIGN BY APPROPRIATE TERMINAL. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6625-00-500-3882 still in active supply?

NSN 6625-00-500-3882 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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