PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

921021-51Connector,plug,electrical

Raytheon Company Dba Raytheon · NSN 5935-00-581-4311 · FSC 5935 · No Item Name Available
Verified by PartsTable
NSN 5935-00-581-4311 — this item is cataloged by the U.S. Government under National Stock Number 5935-00-581-4311. Primary manufacturer part number: 921021-51.
Features
  • Connector,plug,electrical — FSC 5935
  • Thread Direction: RIGHT-HAND
  • Body Style: STRAIGHT SHAPE, INTERNAL COUPLING
  • Mating End Quantity: 1
  • Threaded Device Type: COUPLING FACILITY
  • Environmental Protection: MOISTURE RESISTANT
  • Overall Diameter: 0.280 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
  • Contact Maximum AC Voltage Rating in Volts: 500.0 SINGLE MATING END SINGLE CONTACT GROUPING
Applications
  • Electrical interconnection
  • Signal interface mating
  • Quick-disconnect coupling
General Description

The Connector,plug,electrical, cataloged under National Stock Number 5935-00-581-4311, 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 Raytheon Company Dba Raytheon. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5935-00-581-4311
Primary Part Number921021-51
Item NameConnector,plug,electrical
FSC / FSG5935 / 59 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon
StatusACTIVE
Thread DirectionRIGHT-HAND
Body StyleSTRAIGHT SHAPE, INTERNAL COUPLING
Mating End Quantity1
Threaded Device TypeCOUPLING FACILITY
Environmental ProtectionMOISTURE RESISTANT
Overall Diameter0.280 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
Contact Maximum AC Voltage Rating in Volts500.0 SINGLE MATING END SINGLE CONTACT GROUPING
Contact RemovabilityNONREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
Precious MaterialGOLD AND SILVER
Included Contact Quantity1 SINGLE MATING END SINGLE CONTACT GROUPING
Contact Material Document and ClassificationQQ-B-330,COMP A FED SPEC SINGLE MATERIAL RESPONSE SINGLE MATING END SINGLE CONTACT GROUPING
Contact Surface TreatmentGOLD AND SILVER SINGLE MATING END SINGLE CONTACT GROUPING
Precious Material and LocationCONTACT AND SHELL SURFACE GOLD AND CONTACT SURFACE SILVER
Shell Material Document and ClassificationQQ-B-626,COMP 22 FED SPEC SINGLE MATERIAL RESPONSE
Contact MaterialCOPPER ALLOY SINGLE MATING END SINGLE CONTACT GROUPING
Terminal LocationBACK SINGLE MATING END SINGLE CONTACT GROUPING
Shell TypeSOLID
Radio Frequency Type Contact Characteristic Impedance in Ohms93.0 SINGLE MATING END SINGLE CONTACT GROUPING
Terminal TypeCRIMP SINGLE MATING END SINGLE CONTACT GROUPING
Shell Surface TreatmentGOLD AND SILVER
Shell MaterialCOPPER ALLOY
Nominal Thread Size0.250 INCHES IN
Insert MaterialPLASTIC POLYAMIDE NYLON SINGLE MATING END
Connector Locking MethodINTERNALLY THREADED COUPLING RING
Included Contact TypeCOAXIAL SOCKET SINGLE MATING END SINGLE CONTACT GROUPING
Thread Series DesignatorUNEF
Thread Class2B
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5340-00-360-45617703791 INTERCHANGEABLE
Clip,retaining
U S Army Tank Automotive Command Amsta-Im-Mm
1650-00-872-115688700 INTERCHANGEABLE
Modular Unit,hydrau
Woodward Hrt Inc
6230-01-102-039788700 INTERCHANGEABLE
Searchlight
Streamlight Inc Dba Streamlight Inc
Cross-Reference Index
Part NumberManufacturer
921021-51 PRIMARY Raytheon Company Dba Raytheon (USA)
D1C2955 PRIMARY Itt Cannon Llc (USA)
88700 Amphenol Corporation Div Amphenol Rf (USA)
Related Parts
5340-00-360-4561INTERCHANGEABLE
CLIP,RETAINING
7703791
1650-00-872-1156INTERCHANGEABLE
MODULAR UNIT,HYDRAU
88700
6230-01-102-0397INTERCHANGEABLE
SEARCHLIGHT
88700

Frequently Asked Questions

What is NSN 5935-00-581-4311?

NSN 5935-00-581-4311 is a Connector,plug,electrical, manufactured by Raytheon Company Dba Raytheon, classified under FSC 5935 (No Item Name Available). Status: active.

What are the part numbers for NSN 5935-00-581-4311?

NSN 5935-00-581-4311 has 3 cross-referenced part numbers: 921021-51 (Raytheon Company Dba Raytheon), D1C2955 (Itt Cannon Llc), 88700 (Amphenol Corporation Div Amphenol Rf).

What NSN replaces 5935-00-581-4311?

There are 3 known substitutes for 5935-00-581-4311: 5340-00-360-4561, 1650-00-872-1156, 6230-01-102-0397. Verify interchangeability with system specifications before substitution.

What are the specifications of 921021-51?

Key specifications for 921021-51: Thread Direction: RIGHT-HAND; Body Style: STRAIGHT SHAPE, INTERNAL COUPLING; Mating End Quantity: 1; Threaded Device Type: COUPLING FACILITY. 28 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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