PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FM5W5S-K121Connector,receptacle,electrical

Molex, Llc · NSN 5935-01-734-9556 · FSC 5935 · No Item Name Available
Verified by PartsTable
NSN 5935-01-734-9556 — this item is cataloged by the U.S. Government under National Stock Number 5935-01-734-9556. Primary manufacturer part number: FM5W5S-K121.
Features
  • Connector,receptacle,electrical — FSC 5935
  • 3 verified cross-references
  • Primary manufacturer: Molex, Llc
Applications
  • Electrical interconnection
  • Signal interface mating
  • Quick-disconnect coupling
General Description

The Connector,receptacle,electrical, cataloged under National Stock Number 5935-01-734-9556, 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 Molex, Llc. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameConnector,receptacle,electrical
FSC / FSG5935 — No Item Name Available (FSG 59)
ManufacturersGeneral Dynamics Information Technology, Inc. (CAGE 58672); Molex, Llc (CAGE 1UX99)
Technical Specifications
ParameterValue
NSN5935-01-734-9556
Primary Part NumberFM5W5S-K121
Item NameConnector,receptacle,electrical
FSC / FSG5935 / 59 — No Item Name Available
ManufacturerMolex, Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
6110-01-734-6134FCB-205-0223M INTERCHANGEABLE
Contactor,magnetic
Te Connectivity Corporation
5945-01-734-8658KCA-D2K INTERCHANGEABLE
Relay,electromagnetic
Leach International Corp Div Leach International Corporation
5920-01-734-8711100894001 INTERCHANGEABLE
Panel,fuse
General Dynamics Information Technology, Inc.
5935-01-734-9145FM5W5P-K120 INTERCHANGEABLE
Connector,plug,electrical
Molex, Llc
5999-01-734-98931727040142 INTERCHANGEABLE
Contact,electrical
The Sherwin-Williams Company
5999-01-734-99011727040150 INTERCHANGEABLE
Contact,electrical
Molex, Llc
6120-01-735-0017100895004 INTERCHANGEABLE
Power Supply
General Dynamics Information Technology, Inc.
5998-01-735-6196100894001 FIND NO. 26 INTERCHANGEABLE
Backplane Assembly
General Dynamics Information Technology, Inc.
Cross-Reference Index
Part NumberManufacturer
100894001 General Dynamics Information Technology, Inc. (USA)
100895004 General Dynamics Information Technology, Inc. (USA)
FM5W5S-K121 PRIMARY Molex, Llc (USA)
Related Parts
6110-01-734-6134INTERCHANGEABLE
CONTACTOR,MAGNETIC
FCB-205-0223M
5945-01-734-8658INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
KCA-D2K
5920-01-734-8711INTERCHANGEABLE
PANEL,FUSE
100894001
5935-01-734-9145INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
FM5W5P-K120
5999-01-734-9893INTERCHANGEABLE
CONTACT,ELECTRICAL
1727040142
5999-01-734-9901INTERCHANGEABLE
CONTACT,ELECTRICAL
1727040150
6120-01-735-0017INTERCHANGEABLE
POWER SUPPLY
100895004
5998-01-735-6196INTERCHANGEABLE
BACKPLANE ASSEMBLY
100894001 FIND NO. 26

Frequently Asked Questions

What is NSN 5935-01-734-9556?

NSN 5935-01-734-9556 is a Connector,receptacle,electrical, manufactured by Molex, Llc, classified under FSC 5935 (No Item Name Available). Status: active.

What are the part numbers for NSN 5935-01-734-9556?

NSN 5935-01-734-9556 has 3 cross-referenced part numbers: 100894001 (General Dynamics Information Technology, Inc.), 100895004 (General Dynamics Information Technology, Inc.), FM5W5S-K121 (Molex, Llc).

What NSN replaces 5935-01-734-9556?

There are 8 known substitutes for 5935-01-734-9556: 6110-01-734-6134, 5945-01-734-8658, 5920-01-734-8711 and 5 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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