PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

306-0203-00Terminal,feedthru

Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems · NSN 5940-00-539-0349 · FSC 5940 · No Item Name Available
Verified by PartsTable
NSN 5940-00-539-0349 — this item is cataloged by the U.S. Government under National Stock Number 5940-00-539-0349. Primary manufacturer part number: 306-0203-00.
Features
  • Terminal,feedthru — FSC 5940
  • Swage Outside Diameter: 0.181 INCHES IN
  • Mounting Method Style: SWAGE
  • Overall Diameter: 0.250 INCHES0.250 INCHES IN
  • Surface Treatment: SILVER OVERALL SINGLE LAYER
  • Electrical Insulation Feature: UNINSULATED
  • Material: COPPER ALLOY OVERALL
  • Turret Minor Diameter: 0.062 INCHES ALL ENDS IN
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Terminal,feedthru, cataloged under National Stock Number 5940-00-539-0349, is classified within Federal Supply Class 5940 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5940-00-539-0349
Primary Part Number306-0203-00
Item NameTerminal,feedthru
FSC / FSG5940 / 59 — No Item Name Available
ManufacturerRockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
StatusACTIVE
Swage Outside Diameter0.181 INCHES IN
Mounting Method StyleSWAGE
Overall Diameter0.250 INCHES0.250 INCHES IN
Surface TreatmentSILVER OVERALL SINGLE LAYER
Electrical Insulation FeatureUNINSULATED
MaterialCOPPER ALLOY OVERALL
Turret Minor Diameter0.062 INCHES ALL ENDS IN
Swage Depth0.086 INCHES IN
Minor Bushing Length0.234 INCHES IN
Largest Diameter0.093 INCHES ALL ENDS IN
Conductor Accommodation TypeSINGLE TURRET ALL ENDS
Basic Shape StyleNONTUBULAR ROUND
First End Terminal Length0.218 INCHES IN
Precious MaterialSILVER
Precious Material and Weight0.040 SILVER GRAINS, TROY
Second End Terminal Length0.219 INCHES IN
Precious Material and LocationOVERALL OUTER SURFACE SILVER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
6665-00-099-9204 INTERCHANGEABLE
Calibration Check Kit,gas Monito
5133-00-189-9253 INTERCHANGEABLE
Drill,twist
5930-00-258-55631143-5 INTERCHANGEABLE
Switch,knife
Schneider Electric Usa, Inc.
5955-00-303-366653735 INTERCHANGEABLE
Holder,crystal Unit
L3harris Technologies, Inc Div Space & Airborne Systems
5977-00-369-9480105076 INTERCHANGEABLE
Brush,electrical Contact
Telemechanics Inc
2915-00-728-230811435 INTERCHANGEABLE
Throat,fuel,booster
Parker Hannifin Corp Dba Pneutronics
5120-01-112-8352 INTERCHANGEABLE
Hammer,hand
5305-01-354-5706 INTERCHANGEABLE
Screw,machine
5998-01-521-881153735 INTERCHANGEABLE
Circuit Card Assembly
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
5306-01-548-2480 INTERCHANGEABLE
Bolt,machine
Cross-Reference Index
Part NumberManufacturer
1143-5 Interconnection Products Inc (USA)
160-1143-05-01-00 Interconnection Products Inc (USA)
5373-5 New Haven Mfg Corp Amatom Electronic Hardware Div (USA)
306-0203-00 PRIMARY Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
1220F-1 Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect (USA)
3SS8-62F Precision Metal Products Co (USA)
X1143E Interconnection Products Inc (USA)
1143E Interconnection Products Inc (USA)
4020-F-1 PRIMARY Lerco Div Space-Lok Inc (USA)
10-507-6-01 PRIMARY Concord Electronics, Inc. (USA)
10-507-6 Concord Electronics, Inc. (USA)
Related Parts
6665-00-099-9204INTERCHANGEABLE
CALIBRATION CHECK KIT,GAS MONITO
5133-00-189-9253INTERCHANGEABLE
DRILL,TWIST
5930-00-258-5563INTERCHANGEABLE
SWITCH,KNIFE
1143-5
5955-00-303-3666INTERCHANGEABLE
HOLDER,CRYSTAL UNIT
53735
5977-00-369-9480INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
105076
2915-00-728-2308INTERCHANGEABLE
THROAT,FUEL,BOOSTER
11435
5120-01-112-8352INTERCHANGEABLE
HAMMER,HAND
5305-01-354-5706INTERCHANGEABLE
SCREW,MACHINE
5998-01-521-8811INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
53735
5306-01-548-2480INTERCHANGEABLE
BOLT,MACHINE
4730-01-562-0276INTERCHANGEABLE
MANIFOLD ASSEMBLY,HYDRAULIC
53735

Frequently Asked Questions

What is NSN 5940-00-539-0349?

NSN 5940-00-539-0349 is a Terminal,feedthru, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5940 (No Item Name Available). Status: active.

What are the part numbers for NSN 5940-00-539-0349?

NSN 5940-00-539-0349 has 11 cross-referenced part numbers: 1143-5 (Interconnection Products Inc), 160-1143-05-01-00 (Interconnection Products Inc), 5373-5 (New Haven Mfg Corp Amatom Electronic Hardware Div), 306-0203-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 1220F-1 (Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect) and 6 more.

What NSN replaces 5940-00-539-0349?

There are 11 known substitutes for 5940-00-539-0349: 6665-00-099-9204, 5133-00-189-9253, 5930-00-258-5563 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 306-0203-00?

Key specifications for 306-0203-00: Swage Outside Diameter: 0.181 INCHES IN; Mounting Method Style: SWAGE; Overall Diameter: 0.250 INCHES0.250 INCHES IN; Surface Treatment: SILVER OVERALL SINGLE LAYER. 18 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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