PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6421Adapter,connector

United Microwave Products, Inc. · NSN 5935-01-198-6241 · FSC 5935 · No Item Name Available
Verified by PartsTable
NSN 5935-01-198-6241 — this item is cataloged by the U.S. Government under National Stock Number 5935-01-198-6241. Primary manufacturer part number: 6421.
Features
  • Adapter,connector — FSC 5935
  • Thread Direction: RIGHT-HAND
  • Environmental Protection: MOISTURE RESISTANT AND SALT WATER RESISTANT AND SHOCK RESISTANT AND THERMAL SHOCK RESISTANT AND VIBRATION RESISTANT
  • Contact Surface Treatment Document and Classification: MIL-G-45204,TY 1,CLASS 2,GRADE C MIL SPEC SINGLE TREATMENT RESPONSE ALL MATING ENDS SINGLE CONTACT GROUPING
  • Contact Position Arrangement Style: TNC ALL MATING ENDS
  • Shell Type: SOLID
  • Connector Locking Method: EXTERNALLY THREADED SHELL AND INTERNALLY THREADED SHELL
  • Contact Maximum Frequency Rating: 11000.0 MEGAHERTZ ALL MATING ENDS SINGLE CONTACT GROUPING
Applications
  • Electrical interconnection
  • Signal interface mating
  • Quick-disconnect coupling
General Description

The Adapter,connector, cataloged under National Stock Number 5935-01-198-6241, 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 United Microwave Products, Inc.. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 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
NSN5935-01-198-6241
Primary Part Number6421
Item NameAdapter,connector
FSC / FSG5935 / 59 — No Item Name Available
ManufacturerUnited Microwave Products, Inc.
StatusCANCELLED
Thread DirectionRIGHT-HAND
Environmental ProtectionMOISTURE RESISTANT AND SALT WATER RESISTANT AND SHOCK RESISTANT AND THERMAL SHOCK RESISTANT AND VIBRATION RESISTANT
Contact Surface Treatment Document and ClassificationMIL-G-45204,TY 1,CLASS 2,GRADE C MIL SPEC SINGLE TREATMENT RESPONSE ALL MATING ENDS SINGLE CONTACT GROUPING
Contact Position Arrangement StyleTNC ALL MATING ENDS
Shell TypeSOLID
Connector Locking MethodEXTERNALLY THREADED SHELL AND INTERNALLY THREADED SHELL
Contact Maximum Frequency Rating11000.0 MEGAHERTZ ALL MATING ENDS SINGLE CONTACT GROUPING
Precious Material and Weight0.010 GOLD GRAINS, TROY
Included Contact Quantity1 ALL MATING ENDS SINGLE CONTACT GROUPING
Radio Frequency Type Contact Characteristic Impedance in Ohms50.0 ALL MATING ENDS SINGLE CONTACT GROUPING
Contact MaterialCOPPER ALLOY ALL MATING ENDS SINGLE CONTACT GROUPING
Precious Material and LocationCONTACT SURFACES GOLD
Precious MaterialGOLD
Thread Series DesignatorUNEF
Contact Surface TreatmentGOLD ALL MATING ENDS SINGLE CONTACT GROUPING
Included Contact TypeCOAXIAL SOCKET FIRST MATING END SINGLE CONTACT GROUPING
Thread Class2A AND 2B A
Mating End Quantity2
Specification/standard Data81349-MIL-A-55339/32 GOVERNMENT SPECIFICATION
Included Contact TypeCOAXIAL PIN SECOND MATING END SINGLE CONTACT GROUPING
Shell MaterialCOPPER ALLOY
Nominal Thread Size0.438 INCHES IN
Contact RemovabilityREMOVABLE ALL MATING ENDS SINGLE CONTACT GROUPING
Test Data Document81349-MIL-A-55339 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Thread Quantity Per Inch28
Body StyleANGLE SHAPE, EXTERNAL/INTERNAL COUPLING
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6130-00-378-5567 INTERCHANGEABLE
Case,power Supply
5365-00-509-07676421 INTERCHANGEABLE
Bushing,head Post
Unity Manufacturing Co
5950-00-581-99506421 INTERCHANGEABLE
Transformer,power Autotransforme
Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems
5930-00-911-84886421 INTERCHANGEABLE
Switch,pressure
Horizon Aerospace Llc Dba Transicoil
7035-01-010-42577601884-00 INTERCHANGEABLE
Head,magnetic
L3 Technologies, Inc. Dba Communication Systems-West Div Communication Systems-West
4820-01-105-748725P-2914-B INTERCHANGEABLE
Valve,control
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
4010-01-145-8452 INTERCHANGEABLE
Wire Rope Assembly,single Leg
4720-01-151-20156421 INTERCHANGEABLE
Hose,vacuum
Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations
3120-01-249-3659 INTERCHANGEABLE
Bearing,plain,rod End
5935-01-397-4996 INTERCHANGEABLE
Adapter,connector
Cross-Reference Index
Part NumberManufacturer
6421 United Microwave Products, Inc. (USA)
MIL-A-55339/32 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-55339/32 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M55339/32-00001 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
5983723 Naval Sea Systems Command (USA)
3032237P1 Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems (USA)
29684P1 Huber+suhner Astrolab, Inc. Dba Huber & Suhner Astrolab Inc (USA)
Related Parts
6130-00-378-5567INTERCHANGEABLE
CASE,POWER SUPPLY
5365-00-509-0767INTERCHANGEABLE
BUSHING,HEAD POST
6421
5950-00-581-9950INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
6421
5930-00-911-8488INTERCHANGEABLE
SWITCH,PRESSURE
6421
7035-01-010-4257INTERCHANGEABLE
HEAD,MAGNETIC
7601884-00
4820-01-105-7487INTERCHANGEABLE
VALVE,CONTROL
25P-2914-B
4010-01-145-8452INTERCHANGEABLE
WIRE ROPE ASSEMBLY,SINGLE LEG
4720-01-151-2015INTERCHANGEABLE
HOSE,VACUUM
6421
3120-01-249-3659INTERCHANGEABLE
BEARING,PLAIN,ROD END
5935-01-397-4996INTERCHANGEABLE
ADAPTER,CONNECTOR
5342-01-550-2843INTERCHANGEABLE
CONTROL ROD
6/421
6110-01-558-8186INTERCHANGEABLE
EC-P4 CONTROL
SNA-S2X-6001TS

Frequently Asked Questions

What is NSN 5935-01-198-6241?

NSN 5935-01-198-6241 is a Adapter,connector, manufactured by United Microwave Products, Inc., classified under FSC 5935 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5935-01-198-6241?

NSN 5935-01-198-6241 has 7 cross-referenced part numbers: 6421 (United Microwave Products, Inc.), MIL-A-55339/32 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-55339/32 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M55339/32-00001 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 5983723 (Naval Sea Systems Command) and 2 more.

What NSN replaces 5935-01-198-6241?

There are 12 known substitutes for 5935-01-198-6241: 6130-00-378-5567, 5365-00-509-0767, 5950-00-581-9950 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6421?

Key specifications for 6421: Thread Direction: RIGHT-HAND; Environmental Protection: MOISTURE RESISTANT AND SALT WATER RESISTANT AND SHOCK RESISTANT AND THERMAL SHOCK RESISTANT AND VIBRATION RESISTANT; Contact Surface Treatment Document and Classification: MIL-G-45204,TY 1,CLASS 2,GRADE C MIL SPEC SINGLE TREATMENT RESPONSE ALL MATING ENDS SINGLE CONTACT GROUPING; Contact Position Arrangement Style: TNC ALL MATING ENDS. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5935-01-198-6241 still in active supply?

NSN 5935-01-198-6241 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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