PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

956C557-2Meter,electrical Frequency

Westinghouse Electric Corp · NSN 6625-00-878-8913 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-878-8913 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-878-8913. Primary manufacturer part number: 956C557-2.
Features
  • Meter,electrical Frequency — FSC 6625
  • Circuit Attachment Method and Quantity: 2 SOLDER LUG
  • Mounting Bolt Circle Diameter: 3.156 INCHES NOMINAL IN
  • Mounting Arrangement Style: THREE HOLE/STUD BOLT CIRCLE
  • Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S)
  • Installation Design: PANEL
  • Meter Depth Behind Mounting Flange: 3.125 INCHES NOMINAL IN
  • Meter Body Diameter Behind Mounting Flange: 2.656 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Meter,electrical Frequency, cataloged under National Stock Number 6625-00-878-8913, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Westinghouse Electric Corp. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 9 manufacturers, 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
NSN6625-00-878-8913
Primary Part Number956C557-2
Item NameMeter,electrical Frequency
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerWestinghouse Electric Corp
StatusACTIVE
Circuit Attachment Method and Quantity2 SOLDER LUG
Mounting Bolt Circle Diameter3.156 INCHES NOMINAL IN
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Installation DesignPANEL
Meter Depth Behind Mounting Flange3.125 INCHES NOMINAL IN
Meter Body Diameter Behind Mounting Flange2.656 INCHES NOMINAL IN
Mounting Hole Diameter0.150 INCHES NOMINAL IN
Style DesignatorROUND FLUSH MTG
Scale Selection MethodTERMINAL
Overall Diameter3.510 INCHES NOMINAL IN
Special MarkingsGREEN SCALE MARKINGS 320-480,RED SCALE MARKINGS 300-320,AND RED SCALE MARKINGS 480-500
Frequency Response Range+300.000 TO 500.000 HERTZ
Circuit Attachment Method and Quantity2 SOLDER LUG
Mounting Bolt Circle Diameter3.156 INCHES NOMINAL IN
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S)
Installation DesignPANEL
Meter Depth Behind Mounting Flange3.125 INCHES NOMINAL IN
Meter Body Diameter Behind Mounting Flange2.656 INCHES NOMINAL IN
Mounting Hole Diameter0.150 INCHES NOMINAL IN
Style DesignatorROUND FLUSH MTG
Scale Selection MethodTERMINAL
Overall Diameter3.510 INCHES NOMINAL IN
Special MarkingsGREEN SCALE MARKINGS 320-480,RED SCALE MARKINGS 300-320,AND RED SCALE MARKINGS 480-500
Frequency Response Range+300.000 TO 500.000 HERTZ
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor7025-01-618-1429 (3283)
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeZN
Weight1.2500 lbs
Cube0.1667 cu ft
Verified Substitutes 12
7025-01-618-14293283 SUCCESSOR
Keyboard,data Entry
Logitech Inc
3120-00-054-96146328-3 INTERCHANGEABLE
Bearing,sleeve
Goodrich Aerospace Canada Ltd
5915-00-076-91087753723P006 INTERCHANGEABLE
Filter,band Pass
Lockheed Martin Corporation Div Rms
5935-00-758-5330G382600-1 INTERCHANGEABLE
Adapter,connector
Raytheon Company Dba Raytheon Co
6505-00-781-8471NDC00006-0614-68 INTERCHANGEABLE
Probenecid and Colchicine Tablet
Merck Sharp & Dohme Corp. Dba Merck Div Us Human Health
9540-00-852-6311 INTERCHANGEABLE
Angle,structural
5930-00-856-3874219634AH2 INTERCHANGEABLE
Switch,rotary
Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
5935-00-878-7548032-0083-0001 INTERCHANGEABLE
Connector,plug,electrical
Te Connectivity Corporation Dba Microdot Products
5340-01-030-31659739-B-0832-3A INTERCHANGEABLE
Standoff,threaded,spacing
Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware
5365-01-247-1655 INTERCHANGEABLE
Spacer,plate
Cross-Reference Index
Part NumberManufacturer
3283 Simpson Electric Co Simpson Instruments Div (USA)
AEDXN32005 Esco Inc (USA)
1051-59-0 Simpson Electric Co Simpson Instruments Div (USA)
MK701-144 Mkc Electronics Inc Dba Mk Electronics Div Mkc Electronics Inc, Dba Mk Electronics (USA)
956C557-2 PRIMARY Westinghouse Electric Corp (USA)
1051-59-0 Bi Technologies Corporation Div Bi Technologies Corp. (USA)
AEDXN32005 Jewell Instruments, Llc Dba Modutec Use CAGE Code 33005 for Cataloging (USA)
60855 Simpson Electric Co Simpson Instruments Div (USA)
369-006 Jewell Instruments Llc (USA)
956C557-2 PRIMARY Hamilton Sundstrand Corporation (USA)
956C557-2 Sundstrand Corp Electric Power Systems Div (USA)
Related Parts
SUCCESSOR 7025-01-618-1429 Keyboard,data Entry · 3283
3120-00-054-9614INTERCHANGEABLE
BEARING,SLEEVE
6328-3
5915-00-076-9108INTERCHANGEABLE
FILTER,BAND PASS
7753723P006
5935-00-758-5330INTERCHANGEABLE
ADAPTER,CONNECTOR
G382600-1
6505-00-781-8471INTERCHANGEABLE
PROBENECID AND COLCHICINE TABLET
NDC00006-0614-68
9540-00-852-6311INTERCHANGEABLE
ANGLE,STRUCTURAL
5930-00-856-3874INTERCHANGEABLE
SWITCH,ROTARY
219634AH2
5935-00-878-7548INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
032-0083-0001
5340-01-030-3165INTERCHANGEABLE
STANDOFF,THREADED,SPACING
9739-B-0832-3A
5365-01-247-1655INTERCHANGEABLE
SPACER,PLATE
5365-01-263-8997INTERCHANGEABLE
SPACER,RING
60855
3040-01-318-8476INTERCHANGEABLE
PARTS KIT,LINEAR ACTUATING CYLIN
0151590

Frequently Asked Questions

What is NSN 6625-00-878-8913?

NSN 6625-00-878-8913 is a Meter,electrical Frequency, manufactured by Westinghouse Electric Corp, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-878-8913?

NSN 6625-00-878-8913 has 11 cross-referenced part numbers: 3283 (Simpson Electric Co Simpson Instruments Div), AEDXN32005 (Esco Inc), 1051-59-0 (Simpson Electric Co Simpson Instruments Div), MK701-144 (Mkc Electronics Inc Dba Mk Electronics Div Mkc Electronics Inc, Dba Mk Electronics), 956C557-2 (Westinghouse Electric Corp) and 6 more.

What NSN replaces 6625-00-878-8913?

There are 12 known substitutes for 6625-00-878-8913: 7025-01-618-1429, 3120-00-054-9614, 5915-00-076-9108 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 956C557-2?

Key specifications for 956C557-2: Circuit Attachment Method and Quantity: 2 SOLDER LUG; Mounting Bolt Circle Diameter: 3.156 INCHES NOMINAL IN; Mounting Arrangement Style: THREE HOLE/STUD BOLT CIRCLE; Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S). 28 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com