PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS25183-28-21SConnector,plug,electrical

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5935-00-256-1659 · FSC 5935 · No Item Name Available
Verified by PartsTable
NSN 5935-00-256-1659 — this item is cataloged by the U.S. Government under National Stock Number 5935-00-256-1659. Primary manufacturer part number: MS25183-28-21S.
Features
  • Connector,plug,electrical — FSC 5935
  • Overall Diameter: 1.969 INCHES MAXIMUM IN
  • Contact Removability: REMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
  • Polarization Method: KEYWAY OR MULTIPLE KEYWAY
  • Shell Material: ALUMINUM ALLOY
  • Terminal Location: BACK SINGLE MATING END SINGLE CONTACT GROUPING
  • Included Contact Quantity: 37 SINGLE MATING END SINGLE CONTACT GROUPING
  • Thread Quantity Per Inch: 18
Applications
  • Electrical interconnection
  • Signal interface mating
  • Quick-disconnect coupling
General Description

The Connector,plug,electrical, cataloged under National Stock Number 5935-00-256-1659, 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 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5935-00-256-1659
Primary Part NumberMS25183-28-21S
Item NameConnector,plug,electrical
FSC / FSG5935 / 59 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Overall Diameter1.969 INCHES MAXIMUM IN
Contact RemovabilityREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
Polarization MethodKEYWAY OR MULTIPLE KEYWAY
Shell MaterialALUMINUM ALLOY
Terminal LocationBACK SINGLE MATING END SINGLE CONTACT GROUPING
Included Contact Quantity37 SINGLE MATING END SINGLE CONTACT GROUPING
Thread Quantity Per Inch18
Thread Series DesignatorUNS
Precious MaterialGOLD AND SILVER
Shell Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL C FED SPEC SINGLE TREATMENT RESPONSE
Terminal TypeSOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING
Insert Position in Deg0.0
Precious Material and Weight0.037 GOLD GRAINS, TROY AND 0.037 SILVER GRAINS, TROY
Contact Maximum AC Voltage Rating in Volts500.0 SINGLE MATING END SINGLE CONTACT GROUPING
Contact Position Arrangement Style28-21 SINGLE MATING END
Nominal Thread Length0.594 INCHES IN
Nominal Thread Size1.750 INCHES IN
Insert MaterialPLASTIC AND RUBBER SINGLE MATING END
Connector Locking MethodINTERNALLY THREADED COUPLING RING
Connector Cable Strain Relief MethodPOTTING TYPE
Included Contact TypeROUND PIN SINGLE MATING END SINGLE CONTACT GROUPING
Contact Maximum Current Rating in Amps22.0 SINGLE MATING END SINGLE CONTACT GROUPING
Contact Surface TreatmentGOLD AND SILVER SINGLE MATING END SINGLE CONTACT GROUPING
Precious Material and LocationCONTACT SURFACES GOLD AND CONTACT SURFACES SILVER
Shell TypePOTTING
Shell Surface TreatmentCADMIUM
Contact Maximum DC Voltage Rating in Volts700.0 SINGLE MATING END SINGLE CONTACT GROUPING
Threaded Device TypeCOUPLING FACILITY
Mating End Quantity1
Thread Class2B
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-188-6783MS3106K22-14P INTERCHANGEABLE
Connector,plug,electrical
Sae International Dba Sae International
5935-00-188-6914MS3106K32-17P INTERCHANGEABLE
Connector,plug,electrical
Sae International Dba Sae International
5935-00-421-9143 INTERCHANGEABLE
Connector,plug,electrical
5935-00-548-0953MS3456W18-9S INTERCHANGEABLE
Connector,plug,electrical
Sae International Dba Sae International
5935-00-557-1977MS25183A28-21S INTERCHANGEABLE
Connector,plug,electrical
Sae International Dba Sae International
5935-00-686-0271 INTERCHANGEABLE
Connector,receptacle,electrical
5935-00-727-7559 INTERCHANGEABLE
Connector,plug,electrical
5935-00-727-7560 INTERCHANGEABLE
Connector,plug,electrical
5935-00-801-6616MS3102R14S-7P INTERCHANGEABLE
Connector,receptacle,electrical
Sae International Dba Sae International
5935-00-805-4992 INTERCHANGEABLE
Connector,plug,electrical
Cross-Reference Index
Part NumberManufacturer
MS25183-28-21S Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MILC5015D Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5935-00-188-6783INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
MS3106K22-14P
5935-00-188-6914INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
MS3106K32-17P
5935-00-421-9143INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5935-00-548-0953INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
MS3456W18-9S
5935-00-557-1977INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
MS25183A28-21S
5935-00-686-0271INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5935-00-727-7559INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5935-00-727-7560INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5935-00-801-6616INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
MS3102R14S-7P
5935-00-805-4992INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5935-00-806-4181INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5935-00-807-0052INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL

Frequently Asked Questions

What is NSN 5935-00-256-1659?

NSN 5935-00-256-1659 is a Connector,plug,electrical, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5935 (No Item Name Available). Status: active.

What are the part numbers for NSN 5935-00-256-1659?

NSN 5935-00-256-1659 has 2 cross-referenced part numbers: MS25183-28-21S (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MILC5015D (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5935-00-256-1659?

There are 12 known substitutes for 5935-00-256-1659: 5935-00-188-6783, 5935-00-188-6914, 5935-00-421-9143 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS25183-28-21S?

Key specifications for MS25183-28-21S: Overall Diameter: 1.969 INCHES MAXIMUM IN; Contact Removability: REMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING; Polarization Method: KEYWAY OR MULTIPLE KEYWAY; Shell Material: ALUMINUM ALLOY. 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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