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NSN: 6625-00-458-2481 | Model: 251-115A
ITAR Registered seal

An instrument which measures electrical potential and is calibrated in volts or any multiple and/or submultiple thereof. The value may be expressed by means of a pointer and calibrated dial or a digital readout display.

NSN Properties and Flags
NATO Stock Number
Yes - ITAR Controlled
Circuit Current For Which Designed
Dielectric Withstanding Voltage In Volts
Overall Length
2.276 inches
Center To Center Distance Between Mounting Facilities Parallel To Length
Between 5.240 inches and 5.260 inches
Center To Center Distance Between Mounting Facilities Parallel To Width
Between 2.090 inches and 3.010 inches
Overall Height
Between 4.318 inches and 4.348 inches
Overall Width
Between 5.602 inches and 5.622 inches
Scale Division Quantity
61 single indicator 2nd range
Mounting Stud Length
0.500 inches
Environmental Protection
Airtight and dust resistant and fungus resistant and heat resistant and humidity resistant and shock resistant and vibration resistant and water resistant
Furnished Items And Quantity
Nut 8; lockwasher 6; shunt wire 1; seal 1
Indicator Type
Dial w/pointer
Installation Design
Mounting Arrangement Style
Four hole/stud rectangular/square
Sensitivity Rating
100.0 volts
Dial Scale Marking Color
Red single indicator 3rd range
Accuracy In Percent
-2.0 to 2.0 at full scale single indicator all ranges
Unable To Decode
Unable to decode or unable to decode
Meter Depth Behind Mounting Flange
Between 1.155 inches and 1.165 inches
Meter Body Diameter Behind Mounting Flange
Between 2.770 inches and 2.790 inches
Movement Type
Moving coil, permanent magnet
Background Color
White single indicator all ranges
Pointer Color
Red single indicator all ranges
Power Source
Mounting Facility Type And Quantity
4 threaded stud
Scale Graduation Type
Nonlinear single indicator 3rd range
Measurement Range
+0.0 to 50.0 millivolts, ac single indicator 3rd range
Mounting Stud Diameter
Between 0.128 inches and 0.148 inches
Scale Selection Method
Features Provided
External shunting and luminous scale marking and magnetic shield and zero adjuster
Movement Suspension Method
Jewel pivot base
Circuit Attachment Method And Quantity
2 threaded stud
Special Features
Nuclear Hardness Critical Feature
Surface Treatment
Special Test Features
Complies with mil-m-10304
Style Designator
Rectangular flush mtg
Fsc Application Data
Test set, elect. Equip.

Pricing and Availability

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NSN 6625-00-458-2481 Datasheet

Supply Class (FSC):
Electrical And Electronic Properties Measuring And Testing Instruments
Cross Reference:
  • 251-115A
  • 251-1115
  • 203-1115
Cage Codes:
  • Millivac Instruments Inc (CAGE 85711)
Schedule B & Trade:
  • Schedule B: 9030908030 (NAICS 334515)

    Parts and accessories of articles of schedule b subheading 9030.39

  • SITC: 87479

    Parts and accessories for instruments and apparatus (except meters) measuring etc. Electrical quanities and devices measuring etc. Ionized radiations

  • End Use: 21160

    Measuring, testing, control instruments


P - Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of federal standard 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.


A - Item does not contain precious metal.


- Represents items with no adp components


- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:
  • NMFC:

    136740 - Meters elec/parts

  • WCC:

    657 - Instruments, electric meter

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • ACC:

    H - Instruments/equipment/supplies for radio, communications, electrical, laboratory, etc. (includes signal corps)

  • LTL:

    W - Rating variable

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
  • AAC
  • Quantity per pack
  • Unit of Measure
  • Shelf Life
  • Classification Control
  • Repariability

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $827.66 to $1,379.43..
Does NSN 6625-00-458-2481 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Air Force, Department Of The Navy, and Turkey
What is the NIIN of NSN 6625-00-458-2481?
004582481 or 00-458-2481
Does NSN 6625-00-458-2481 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 6625-00-458-2481?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Apr 30, 1969