PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31-203Connector,receptacle,electrical

Amphenol Corporation Div Amphenol Rf · NSN 5935-00-883-2173 · FSC 5935 · No Item Name Available
Verified by PartsTable
NSN 5935-00-883-2173 — this item is cataloged by the U.S. Government under National Stock Number 5935-00-883-2173. Primary manufacturer part number: 31-203.
Features
  • Connector,receptacle,electrical — FSC 5935
  • Shell Type: SOLID
  • Radio Frequency Type Contact Characteristic Impedance in Ohms: 50.0 SINGLE MATING END SINGLE CONTACT GROUPING
  • Contact Maximum AC Voltage Rating in Volts: 500.0 SINGLE MATING END SINGLE CONTACT GROUPING
  • Contact Removability: NONREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
  • Contact Maximum Frequency Rating: 4000.0 MEGAHERTZ SINGLE MATING END SINGLE CONTACT GROUPING
  • Connector Cable Strain Relief Method: CABLE CLAMP
  • Connector Locking Method: BAYONET PIN
Applications
  • Electrical interconnection
  • Signal interface mating
  • Quick-disconnect coupling
General Description

The Connector,receptacle,electrical, cataloged under National Stock Number 5935-00-883-2173, 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 Corporation Div Amphenol Rf. Government technical data includes 11 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5935-00-883-2173
Primary Part Number31-203
Item NameConnector,receptacle,electrical
FSC / FSG5935 / 59 — No Item Name Available
ManufacturerAmphenol Corporation Div Amphenol Rf
StatusACTIVE
Shell TypeSOLID
Radio Frequency Type Contact Characteristic Impedance in Ohms50.0 SINGLE MATING END SINGLE CONTACT GROUPING
Contact Maximum AC Voltage Rating in Volts500.0 SINGLE MATING END SINGLE CONTACT GROUPING
Contact RemovabilityNONREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
Contact Maximum Frequency Rating4000.0 MEGAHERTZ SINGLE MATING END SINGLE CONTACT GROUPING
Connector Cable Strain Relief MethodCABLE CLAMP
Connector Locking MethodBAYONET PIN
Body StyleSTRAIGHT SHAPE, EXTERNAL COUPLING
Mating End Quantity1
Included Contact Quantity1 SINGLE MATING END SINGLE CONTACT GROUPING
Distance Between Centerlines of Mounting Facilities Parallel to Body Width0.531 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-111-648031203 INTERCHANGEABLE
Seal,oil
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5945-00-259-5500TKLHPX2 INTERCHANGEABLE
Relay,electromagnetic
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
4931-00-466-7893FT-16AEU3-LAA-1 INTERCHANGEABLE
Flowmeter,turbine
Fti Flow Technology Llc
5365-00-485-4342 INTERCHANGEABLE
Spacer,ring
5120-00-517-53475120-00-517-5347 INTERCHANGEABLE
Wrench,tap and Reamer
General Services Administration Federal Supply Service
4130-00-809-545731203 INTERCHANGEABLE
Cooling Coil,air,duct Type
Hdt Expeditionary Systems Inc
3455-01-044-79491726-0500 INTERCHANGEABLE
Cutter,milling,end
New York Twist Drill Inc
6515-01-104-2027 INTERCHANGEABLE
Plate,eggers
4820-01-122-569931203 INTERCHANGEABLE
Valve,control
London Machinery Inc
6520-01-540-458231203 INTERCHANGEABLE
Switch,mains
Vident
Cross-Reference Index
Part NumberManufacturer
55-12633-9 The Boeing Company (USA)
55-12633-9 The Boeing Company Div Defense (USA)
31-203 PRIMARY Amphenol Corporation Div Amphenol Rf (USA)
Related Parts
5330-00-111-6480INTERCHANGEABLE
SEAL,OIL
31203
5945-00-259-5500INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
TKLHPX2
4931-00-466-7893INTERCHANGEABLE
FLOWMETER,TURBINE
FT-16AEU3-LAA-1
5365-00-485-4342INTERCHANGEABLE
SPACER,RING
5120-00-517-5347INTERCHANGEABLE
WRENCH,TAP AND REAMER
5120-00-517-5347
4130-00-809-5457INTERCHANGEABLE
COOLING COIL,AIR,DUCT TYPE
31203
3455-01-044-7949INTERCHANGEABLE
CUTTER,MILLING,END
1726-0500
6515-01-104-2027INTERCHANGEABLE
PLATE,EGGERS
4820-01-122-5699INTERCHANGEABLE
VALVE,CONTROL
31203
6520-01-540-4582INTERCHANGEABLE
SWITCH,MAINS
31203
5310-01-571-8345INTERCHANGEABLE
NUT HEX,AIRCRAFT,MA
5995-01-630-8888INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
31203

Frequently Asked Questions

What is NSN 5935-00-883-2173?

NSN 5935-00-883-2173 is a Connector,receptacle,electrical, manufactured by Amphenol Corporation Div Amphenol Rf, classified under FSC 5935 (No Item Name Available). Status: active.

What are the part numbers for NSN 5935-00-883-2173?

NSN 5935-00-883-2173 has 3 cross-referenced part numbers: 55-12633-9 (The Boeing Company), 55-12633-9 (The Boeing Company Div Defense), 31-203 (Amphenol Corporation Div Amphenol Rf).

What NSN replaces 5935-00-883-2173?

There are 12 known substitutes for 5935-00-883-2173: 5330-00-111-6480, 5945-00-259-5500, 4931-00-466-7893 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31-203?

Key specifications for 31-203: Shell Type: SOLID; Radio Frequency Type Contact Characteristic Impedance in Ohms: 50.0 SINGLE MATING END SINGLE CONTACT GROUPING; Contact Maximum AC Voltage Rating in Volts: 500.0 SINGLE MATING END SINGLE CONTACT GROUPING; Contact Removability: NONREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING. 14 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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