PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

UG261BUConnector,plug,electrical

Joint Electronics Type Designation System · NSN 5935-00-257-6849 · FSC 5935 · No Item Name Available
Verified by PartsTable
NSN 5935-00-257-6849 — this item is cataloged by the U.S. Government under National Stock Number 5935-00-257-6849. Primary manufacturer part number: UG261BU.
Features
  • Connector,plug,electrical — FSC 5935
  • Connector Locking Method: BAYONET LATCH
  • Shell Material: COPPER ALLOY
  • Radio Frequency Type Contact Characteristic Impedance in Ohms: 50.0 SINGLE MATING END SINGLE CONTACT GROUPING
  • Insert Material: PLASTIC SINGLE MATING END
  • Included Contact Type: COAXIAL PIN SINGLE MATING END SINGLE CONTACT GROUPING
  • Included Contact Quantity: 1 SINGLE MATING END SINGLE CONTACT GROUPING
  • Connector Cable Strain Relief Method: CABLE CLAMP
Applications
  • Electrical interconnection
  • Signal interface mating
  • Quick-disconnect coupling
General Description

The Connector,plug,electrical, cataloged under National Stock Number 5935-00-257-6849, 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 Joint Electronics Type Designation System. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5935-00-257-6849
Primary Part NumberUG261BU
Item NameConnector,plug,electrical
FSC / FSG5935 / 59 — No Item Name Available
ManufacturerJoint Electronics Type Designation System
StatusCANCELLED
Connector Locking MethodBAYONET LATCH
Shell MaterialCOPPER ALLOY
Radio Frequency Type Contact Characteristic Impedance in Ohms50.0 SINGLE MATING END SINGLE CONTACT GROUPING
Insert MaterialPLASTIC SINGLE MATING END
Included Contact TypeCOAXIAL PIN SINGLE MATING END SINGLE CONTACT GROUPING
Included Contact Quantity1 SINGLE MATING END SINGLE CONTACT GROUPING
Connector Cable Strain Relief MethodCABLE CLAMP
Mating End Quantity1
Overall Diameter0.562 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5136-00-189-3201402795 INTERCHANGEABLE
Die,thread Cutting
Greenfield Industries Inc
5910-00-248-547020053 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Cd Snow Hill, Llc
5985-00-280-80577707282-4 INTERCHANGEABLE
Waveguide Assembly
Lockheed Martin Corporation Div Rms
5925-00-489-862531215 INTERCHANGEABLE
Circuit Breaker
L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.
5355-00-667-74959012-03-00015 INTERCHANGEABLE
Knob
Pax Mfg Corp Hammarlund Mfg Co Div
4820-01-019-754831215 INTERCHANGEABLE
Valve,assembly,control
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5935-01-043-0636 INTERCHANGEABLE
Connector,plug,electrical
3455-01-142-62323024HS INTERCHANGEABLE
Blade,band Saw,metal Cutting
Greenlee Textron Inc.
6530-01-148-74273-1215 INTERCHANGEABLE
Envelope,sterilization
Trimedco Inc
5120-01-430-6846164 INTERCHANGEABLE
Wrench,tap and Reamer
General Tools Manufacturing Co., Llc.
Cross-Reference Index
Part NumberManufacturer
A2060428 L3harris Technologies, Inc. (USA)
UG261BU PRIMARY Joint Electronics Type Designation System (USA)
31-215 Amphenol Corporation Div Amphenol Rf (USA)
REB49061 Naval Ship Systems Command (USA)
Related Parts
5136-00-189-3201INTERCHANGEABLE
DIE,THREAD CUTTING
402795
5910-00-248-5470INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
20053
5985-00-280-8057INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
7707282-4
5925-00-489-8625INTERCHANGEABLE
CIRCUIT BREAKER
31215
5355-00-667-7495INTERCHANGEABLE
KNOB
9012-03-00015
4820-01-019-7548INTERCHANGEABLE
VALVE,ASSEMBLY,CONTROL
31215
5935-01-043-0636INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
3455-01-142-6232INTERCHANGEABLE
BLADE,BAND SAW,METAL CUTTING
3024HS
6530-01-148-7427INTERCHANGEABLE
ENVELOPE,STERILIZATION
3-1215
5120-01-430-6846INTERCHANGEABLE
WRENCH,TAP AND REAMER
164
4820-01-446-8089INTERCHANGEABLE
VALVE,CALIBRATED FLOW
31215
6515-01-451-1424INTERCHANGEABLE
GUIDE,DRILL,BONE
312-15

Frequently Asked Questions

What is NSN 5935-00-257-6849?

NSN 5935-00-257-6849 is a Connector,plug,electrical, manufactured by Joint Electronics Type Designation System, classified under FSC 5935 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5935-00-257-6849?

NSN 5935-00-257-6849 has 4 cross-referenced part numbers: A2060428 (L3harris Technologies, Inc.), UG261BU (Joint Electronics Type Designation System), 31-215 (Amphenol Corporation Div Amphenol Rf), REB49061 (Naval Ship Systems Command).

What NSN replaces 5935-00-257-6849?

There are 12 known substitutes for 5935-00-257-6849: 5136-00-189-3201, 5910-00-248-5470, 5985-00-280-8057 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of UG261BU?

Key specifications for UG261BU: Connector Locking Method: BAYONET LATCH; Shell Material: COPPER ALLOY; Radio Frequency Type Contact Characteristic Impedance in Ohms: 50.0 SINGLE MATING END SINGLE CONTACT GROUPING; Insert Material: PLASTIC SINGLE MATING END. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5935-00-257-6849 still in active supply?

NSN 5935-00-257-6849 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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