PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-C-373057Chopper,electronic

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5945-00-556-7942 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-556-7942 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-556-7942. Primary manufacturer part number: SM-C-373057.
Features
  • Chopper,electronic — FSC 5945
  • Input Voltage Rating: 6.3 AC VOLTS NOMINAL
  • Overall Diameter: 0.750 INCHES NOMINAL IN
  • Terminal Pattern Arrangement: 0.375 IN. DIA PIN @CIRCLE IN
  • Phase Angle in Deg: 20.0
  • Contact Operation Sequence: BREAKS BEFORE MAKES
  • Unit Type: ELECTROMECHANICAL
  • Contact Current Rating: 1.0 MILLIAMPERES NOMINAL
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Chopper,electronic, cataloged under National Stock Number 5945-00-556-7942, is classified within Federal Supply Class 5945 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5945-00-556-7942
Primary Part NumberSM-C-373057
Item NameChopper,electronic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusCANCELLED
Input Voltage Rating6.3 AC VOLTS NOMINAL
Overall Diameter0.750 INCHES NOMINAL IN
Terminal Pattern Arrangement0.375 IN. DIA PIN @CIRCLE IN
Phase Angle in Deg20.0
Contact Operation SequenceBREAKS BEFORE MAKES
Unit TypeELECTROMECHANICAL
Contact Current Rating1.0 MILLIAMPERES NOMINAL
Operating Temp Range-65.0 TO 100.0 CELSIUS DEGC
Plug in Mounting FeaturePROVIDED
Base TypeSTANDARD BASE
Hermetically Sealed FeatureNOT PROVIDED
Output/input Voltage RelationshipEQUAL
Contact ArrangementSINGLE POLE, DOUBLE THROW
Dwell Time Rating in Deg157.0 MINIMUM AND 177.0 MAXIMUM
Drive Voltage Relationship to Input VoltageEQUAL
Base Mounting Size Designation7 PIN MINIATURE TUBE BASE SIZE
Base Connection Wiring Style7 PIN STANDARD TUBE
Contact Voltage Rating100.0 DC VOLTS MAXIMUM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
4820-00-116-0071JA-00175P INTERCHANGEABLE
Valve Assembly
Alliance Laundry Systems Llc
5331-00-166-0975AS3209-011 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5845-00-758-2562A175 INTERCHANGEABLE
Control Assembly
Lockheed Martin Corp
5910-00-910-417532P2202J1 INTERCHANGEABLE
Capacitor,fixed,plastic Dielectr
Wesco Electrical Co Inc
5962-01-014-70411820-1001 INTERCHANGEABLE
Microcircuit,digital
Keysight Technologies Inc
6515-01-170-7094 INTERCHANGEABLE
Surgical Pack,disposable
5331-01-265-2124C2701 INTERCHANGEABLE
O-Ring
Cascade Corp
Cross-Reference Index
Part NumberManufacturer
C2701 James Electronics Inc (USA)
PS910000004-1 Lockheed Martin Corporation Div Rotary and Mission Systems (USA)
A-175 Sensata Technologies Maryland, Inc (USA)
6-776727-00 Kearfott Corporation Div Guidance and Navigation Division (USA)
C7711432P1 Lockheed Martin Corp Naval Electronics & Surveillance Systems (USA)
119-0016-00 Tektronix, Inc. (USA)
SM-C-373057 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
8890723 Us Army Aviation and Missile Command (USA)
Related Parts
4820-00-116-0071INTERCHANGEABLE
VALVE ASSEMBLY
JA-00175P
5331-00-166-0975INTERCHANGEABLE
O-RING
AS3209-011
5845-00-758-2562INTERCHANGEABLE
CONTROL ASSEMBLY
A175
5910-00-910-4175INTERCHANGEABLE
CAPACITOR,FIXED,PLASTIC DIELECTR
32P2202J1
5962-01-014-7041INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
1820-1001
6515-01-170-7094INTERCHANGEABLE
SURGICAL PACK,DISPOSABLE
5331-01-265-2124INTERCHANGEABLE
O-RING
C2701

Frequently Asked Questions

What is NSN 5945-00-556-7942?

NSN 5945-00-556-7942 is a Chopper,electronic, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5945 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5945-00-556-7942?

NSN 5945-00-556-7942 has 8 cross-referenced part numbers: C2701 (James Electronics Inc), PS910000004-1 (Lockheed Martin Corporation Div Rotary and Mission Systems), A-175 (Sensata Technologies Maryland, Inc), 6-776727-00 (Kearfott Corporation Div Guidance and Navigation Division), C7711432P1 (Lockheed Martin Corp Naval Electronics & Surveillance Systems) and 3 more.

What NSN replaces 5945-00-556-7942?

There are 7 known substitutes for 5945-00-556-7942: 4820-00-116-0071, 5331-00-166-0975, 5845-00-758-2562 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SM-C-373057?

Key specifications for SM-C-373057: Input Voltage Rating: 6.3 AC VOLTS NOMINAL; Overall Diameter: 0.750 INCHES NOMINAL IN; Terminal Pattern Arrangement: 0.375 IN. DIA PIN @CIRCLE IN; Phase Angle in Deg: 20.0. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5945-00-556-7942 still in active supply?

NSN 5945-00-556-7942 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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