PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M5SConnector,receptacle,electrical

Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect · NSN 5935-00-257-8561 · FSC 5935 · No Item Name Available
Verified by PartsTable
NSN 5935-00-257-8561 — this item is cataloged by the U.S. Government under National Stock Number 5935-00-257-8561. Primary manufacturer part number: M5S.
Features
  • Connector,receptacle,electrical — FSC 5935
  • Terminal Location: BACK SINGLE MATING END SINGLE CONTACT GROUPING
  • Mating End Quantity: 1
  • Shell Material: PLASTIC
  • Insert Material Document and Classification: MIL-P-4339 MIL SPEC SINGLE MATERIAL RESPONSE SINGLE MATING END
  • Terminal Type: SOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING
  • Insert Material: PLASTIC SINGLE MATING END
  • Contact Position Arrangement Style: MH-5 SINGLE MATING END
Applications
  • Electrical interconnection
  • Signal interface mating
  • Quick-disconnect coupling
General Description

The Connector,receptacle,electrical, cataloged under National Stock Number 5935-00-257-8561, is classified within Federal Supply Class 5935 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5935-00-257-8561
Primary Part NumberM5S
Item NameConnector,receptacle,electrical
FSC / FSG5935 / 59 — No Item Name Available
ManufacturerWinchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
StatusCANCELLED
Terminal LocationBACK SINGLE MATING END SINGLE CONTACT GROUPING
Mating End Quantity1
Shell MaterialPLASTIC
Insert Material Document and ClassificationMIL-P-4339 MIL SPEC SINGLE MATERIAL RESPONSE SINGLE MATING END
Terminal TypeSOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING
Insert MaterialPLASTIC SINGLE MATING END
Contact Position Arrangement StyleMH-5 SINGLE MATING END
Thread Quantity Per Inch20
Precious MaterialGOLD AND SILVER
Included Contact Quantity5 SINGLE MATING END SINGLE CONTACT GROUPING
Contact MaterialCOPPER ALLOY SINGLE MATING END SINGLE CONTACT GROUPING
Nominal Thread Size0.500 INCHES IN
Thread Series DesignatorUNF
Precious Material and LocationCONTACT SURFACES GOLD AND CONTACT SURFACES SILVER
Bushing Accommodation Hole ShapeROUND
ColorNATURAL
Included Contact TypeROUND SOCKET SINGLE MATING END SINGLE CONTACT GROUPING
Polarization MethodCONTACT
Contact RemovabilityNONREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
Body StyleSTRAIGHT SHAPE, LATCHING
Thread DirectionRIGHT-HAND
Contact Maximum Current Rating in Amps5.0 SINGLE MATING END SINGLE CONTACT GROUPING
Threaded Device TypeMOUNTING BUSHING
Contact Surface TreatmentGOLD AND SILVER SINGLE MATING END SINGLE CONTACT GROUPING
Thread Class2A A
Precious Material and Weight0.005 GOLD GRAINS, TROY AND 0.005 SILVER GRAINS, TROY
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5935-00-259-3329C5-20SVRN INTERCHANGEABLE
Connector,receptacle,electrical
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect Rf Corporation
5935-01-097-1073837-742 INTERCHANGEABLE
Adapter,connector
Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)
4730-01-243-35133604 B INTERCHANGEABLE
Clamp,hose
Norma Pennsylvania Inc. Div Breeze Industrial Products
5340-01-457-9990M-5S INTERCHANGEABLE
Clamp,loop
Robertson Fuel Systems, L.l.c.
Cross-Reference Index
Part NumberManufacturer
M5S PRIMARY Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect (USA)
921027-54 Raytheon Company Dba Raytheon (USA)
719938-05 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
837742 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
719938-05REVE Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
C5-20S Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect Rf Corporation (USA)
GH5E Gap Instrument Corp Gorn Div (USA)
54A17668GF Cinch Connectivity Solutions Inc. (USA)
Related Parts
5935-00-259-3329INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
C5-20SVRN
5935-01-097-1073INTERCHANGEABLE
ADAPTER,CONNECTOR
837-742
4730-01-243-3513INTERCHANGEABLE
CLAMP,HOSE
3604 B
5340-01-457-9990INTERCHANGEABLE
CLAMP,LOOP
M-5S

Frequently Asked Questions

What is NSN 5935-00-257-8561?

NSN 5935-00-257-8561 is a Connector,receptacle,electrical, manufactured by Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect, classified under FSC 5935 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5935-00-257-8561?

NSN 5935-00-257-8561 has 8 cross-referenced part numbers: M5S (Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect), 921027-54 (Raytheon Company Dba Raytheon), 719938-05 (Lockheed Martin Corporation Div Rms - Mitchel Field), 837742 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 719938-05REVE (Lockheed Martin Corporation Div Rms - Mitchel Field) and 3 more.

What NSN replaces 5935-00-257-8561?

There are 4 known substitutes for 5935-00-257-8561: 5935-00-259-3329, 5935-01-097-1073, 4730-01-243-3513 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M5S?

Key specifications for M5S: Terminal Location: BACK SINGLE MATING END SINGLE CONTACT GROUPING; Mating End Quantity: 1; Shell Material: PLASTIC; Insert Material Document and Classification: MIL-P-4339 MIL SPEC SINGLE MATERIAL RESPONSE SINGLE MATING END. 27 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5935-00-257-8561 still in active supply?

NSN 5935-00-257-8561 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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