PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1220-2Ammeter

Jewell Instruments Llc · NSN 6625-00-050-6688 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-050-6688 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-050-6688. Primary manufacturer part number: 1220-2.
Features
  • Ammeter — FSC 6625
  • Furnished Items and Quantity: NUT 5; WASHER 5
  • Circuit Current for Which Designed: AC
  • Installation Design: PANEL
  • Power Source: EXTERNAL
  • Measurement Range: +0.0 TO 1.0 AMPERES, AC SINGLE INDICATOR SINGLE RANGE
  • Circuit Attachment Method and Quantity: 2 SCREW AND 2 SOLDER LUG
  • Mounting Facility Type and Quantity: 3 SCREW AND 3 UNTHREADED HOLE(S)
Applications
  • Applications requiring Steel construction
General Description

The Ammeter, cataloged under National Stock Number 6625-00-050-6688, 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 29 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-050-6688
Primary Part Number1220-2
Item NameAmmeter
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerJewell Instruments Llc
StatusACTIVE
Furnished Items and QuantityNUT 5; WASHER 5
Circuit Current for Which DesignedAC
Installation DesignPANEL
Power SourceEXTERNAL
Measurement Range+0.0 TO 1.0 AMPERES, AC SINGLE INDICATOR SINGLE RANGE
Circuit Attachment Method and Quantity2 SCREW AND 2 SOLDER LUG
Mounting Facility Type and Quantity3 SCREW AND 3 UNTHREADED HOLE(S)
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Features ProvidedZERO ADJUSTER
Movement Suspension MethodTAUT BAND
Circuit Construction TypeNONELECTRONIC
Mounting Hole Diameter0.112 INCHES NOMINAL IN
Nuclear Hardness Critical FeatureNONHARDENED
Accuracy in Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Overall Diameter2.690 INCHES NOMINAL IN
Scale Graduation TypeNONLINEAR SINGLE INDICATOR SINGLE RANGE
FSC Application DataTEST SET,ELECT. EQUIP.
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Style DesignatorROUND FLUSH MTG
ColorUNABLE TO DECODE
Supplementary FeaturesCASE MATERIAL MAGNETIC
MaterialSTEEL
Special MarkingsSEALED DO NOT OPEN AND RUGGEDIZED ON BACK OF METER
Mounting Bolt Circle Diameter2.440 INCHES NOMINAL IN
Surface TreatmentENAMEL
Indicator TypeDIAL W/POINTER
Sensitivity Rating120.0 MILLIVOLTS
Panel for Which DesignedNONMAGNETIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeXN
Verified Substitutes 12
3110-00-144-86680042847-4 INTERCHANGEABLE
Bearing,ball,annular
New Holland Construction
5310-00-155-4983905212-02 INTERCHANGEABLE
Washer,lock
Northrop Grumman Systems Corporation
5133-00-189-9247 INTERCHANGEABLE
Drill,twist
5950-00-308-093412202 INTERCHANGEABLE
Reactor
Standex Electronics, Inc.
9905-00-720-537812202 INTERCHANGEABLE
Tag,stock Marking
Avery Dennison Corporation Dba Avery Dennison, Fastener Division Div Avery Dennison - Fastener Division
1560-00-773-807112202 INTERCHANGEABLE
Channel
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
5945-00-790-04907710256 INTERCHANGEABLE
Relay,rotary
Air Force Lifecycle Management Center Electronic Components (aflcmc/ezss)
6625-00-833-11381122-902 INTERCHANGEABLE
Meter,arbitrary Scale
Rogerson Kratos
5340-00-838-6850 INTERCHANGEABLE
Handle,bow
5305-00-954-421712202 INTERCHANGEABLE
Screw,machine
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
Cross-Reference Index
Part NumberManufacturer
1220-2 PRIMARY Jewell Instruments Llc (USA)
Related Parts
3110-00-144-8668INTERCHANGEABLE
BEARING,BALL,ANNULAR
0042847-4
5310-00-155-4983INTERCHANGEABLE
WASHER,LOCK
905212-02
5133-00-189-9247INTERCHANGEABLE
DRILL,TWIST
5950-00-308-0934INTERCHANGEABLE
REACTOR
12202
9905-00-720-5378INTERCHANGEABLE
TAG,STOCK MARKING
12202
1560-00-773-8071INTERCHANGEABLE
CHANNEL
12202
5945-00-790-0490INTERCHANGEABLE
RELAY,ROTARY
7710256
6625-00-833-1138INTERCHANGEABLE
METER,ARBITRARY SCALE
1122-902
5340-00-838-6850INTERCHANGEABLE
HANDLE,BOW
5305-00-954-4217INTERCHANGEABLE
SCREW,MACHINE
12202
5330-01-042-6329INTERCHANGEABLE
GASKET
12202
6150-01-114-6606INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
0901002P1

Frequently Asked Questions

What is NSN 6625-00-050-6688?

NSN 6625-00-050-6688 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 6625-00-050-6688?

NSN 6625-00-050-6688 has 1 cross-referenced part number: 1220-2 (Jewell Instruments Llc).

What NSN replaces 6625-00-050-6688?

There are 12 known substitutes for 6625-00-050-6688: 3110-00-144-8668, 5310-00-155-4983, 5133-00-189-9247 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1220-2?

Key specifications for 1220-2: Furnished Items and Quantity: NUT 5; WASHER 5; Circuit Current for Which Designed: AC; Installation Design: PANEL; Power Source: EXTERNAL. 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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