PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

126-221Connector,receptacle,electrical

Amphenol Corp Spectra-Strip/itd · NSN 5935-00-721-2862 · FSC 5935 · No Item Name Available
Verified by PartsTable
NSN 5935-00-721-2862 — this item is cataloged by the U.S. Government under National Stock Number 5935-00-721-2862. Primary manufacturer part number: 126-221.
Features
  • Connector,receptacle,electrical — FSC 5935
  • Thread Direction: RIGHT-HAND
  • Included Contact Type: ROUND SOCKET SINGLE MATING END SINGLE CONTACT GROUPING
  • Contact Surface Treatment Document and Classification: MIL-G-45204 MIL SPEC SINGLE TREATMENT RESPONSE SINGLE MATING END SINGLE CONTACT GROUPING
  • Connector Locking Method: LATCH
  • Insert Material: PLASTIC SINGLE MATING END
  • Terminal Location: BACK SINGLE MATING END SINGLE CONTACT GROUPING
  • Contact Surface Treatment: GOLD SINGLE MATING END SINGLE CONTACT GROUPING
Applications
  • Electrical interconnection
  • Signal interface mating
  • Quick-disconnect coupling
General Description

The Connector,receptacle,electrical, cataloged under National Stock Number 5935-00-721-2862, 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 Amphenol Corp Spectra-Strip/itd. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5935-00-721-2862
Primary Part Number126-221
Item NameConnector,receptacle,electrical
FSC / FSG5935 / 59 — No Item Name Available
ManufacturerAmphenol Corp Spectra-Strip/itd
StatusCANCELLED
Thread DirectionRIGHT-HAND
Included Contact TypeROUND SOCKET SINGLE MATING END SINGLE CONTACT GROUPING
Contact Surface Treatment Document and ClassificationMIL-G-45204 MIL SPEC SINGLE TREATMENT RESPONSE SINGLE MATING END SINGLE CONTACT GROUPING
Connector Locking MethodLATCH
Insert MaterialPLASTIC SINGLE MATING END
Terminal LocationBACK SINGLE MATING END SINGLE CONTACT GROUPING
Contact Surface TreatmentGOLD SINGLE MATING END SINGLE CONTACT GROUPING
Thread Series DesignatorUNF
Precious MaterialGOLD
Contact RemovabilityNONREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
Contact Maximum Current Rating in Amps7.5 SINGLE MATING END SINGLE CONTACT GROUPING
Nominal Thread Size0.500 INCHES IN
Included Contact Quantity9 SINGLE MATING END SINGLE CONTACT GROUPING
Terminal TypeSOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING
Precious Material and Weight0.009 GOLD GRAINS, TROY
Precious Material and LocationCONTACT SURFACES GOLD
Contact Maximum AC Voltage Rating in Volts500.0 SINGLE MATING END SINGLE CONTACT GROUPING
Polarization MethodCONTACT
Thread Quantity Per Inch20
Shell TypeSOLID
Contact Position Arrangement StyleMH-9 SINGLE MATING END
Contact MaterialCOPPER ALLOY SINGLE MATING END SINGLE CONTACT GROUPING
Bushing Accommodation Hole ShapeROUND KEYED
Thread Class2A A
Threaded Device TypeMOUNTING BUSHING
Body StyleSTRAIGHT SHAPE, LATCHING
Bushing Diameter0.500 INCHES NOMINAL IN
Mating End Quantity1
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5935-00-110-1104C520010006 INTERCHANGEABLE
Connector,receptacle,electrical
Kearfott Corporation Div Guidance and Navigation Division
5935-00-164-1668L01018 INTERCHANGEABLE
Connector,receptacle,electrical
Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)
5935-00-754-8787 INTERCHANGEABLE
Connector,receptacle,electrical
5935-00-776-7951 INTERCHANGEABLE
Connector,receptacle,electrical
5305-00-967-7712126221 INTERCHANGEABLE
Screw,machine
Honeywell International Inc Dba Honeywell Div Consumer Products Group
Cross-Reference Index
Part NumberManufacturer
126-221 Amphenol Corp Spectra-Strip/itd (USA)
551-222 Johnson E F Co Comco/communications Co Div (USA)
666067-480 Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA)
922715-0001-000 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
915-0551-222 Johnson E F Co Comco/communications Co Div (USA)
28391-0009 Cessna Aircraft Co Arc Avionics Div (USA)
Related Parts
5935-00-110-1104INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
C520010006
5935-00-164-1668INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
L01018
5935-00-754-8787INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5935-00-776-7951INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5305-00-967-7712INTERCHANGEABLE
SCREW,MACHINE
126221

Frequently Asked Questions

What is NSN 5935-00-721-2862?

NSN 5935-00-721-2862 is a Connector,receptacle,electrical, manufactured by Amphenol Corp Spectra-Strip/itd, classified under FSC 5935 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5935-00-721-2862?

NSN 5935-00-721-2862 has 6 cross-referenced part numbers: 126-221 (Amphenol Corp Spectra-Strip/itd), 551-222 (Johnson E F Co Comco/communications Co Div), 666067-480 (Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc), 922715-0001-000 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 915-0551-222 (Johnson E F Co Comco/communications Co Div) and 1 more.

What NSN replaces 5935-00-721-2862?

There are 5 known substitutes for 5935-00-721-2862: 5935-00-110-1104, 5935-00-164-1668, 5935-00-754-8787 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 126-221?

Key specifications for 126-221: Thread Direction: RIGHT-HAND; Included Contact Type: ROUND SOCKET SINGLE MATING END SINGLE CONTACT GROUPING; Contact Surface Treatment Document and Classification: MIL-G-45204 MIL SPEC SINGLE TREATMENT RESPONSE SINGLE MATING END SINGLE CONTACT GROUPING; Connector Locking Method: LATCH. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5935-00-721-2862 still in active supply?

NSN 5935-00-721-2862 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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