PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7402703-004Port Module Sfp100b

Naval Sea Systems Command · NSN 5999-01-556-6858 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-556-6858 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-556-6858. Primary manufacturer part number: 7402703-004.
Features
  • Port Module Sfp100b — FSC 5999
  • 2 verified cross-references
  • Primary manufacturer: Naval Sea Systems Command
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Port Module Sfp100b, cataloged under National Stock Number 5999-01-556-6858, is classified within Federal Supply Class 5999 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Naval Sea Systems Command. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Catalog Facts
Item NamePort Module Sfp100b
FSC / FSG5999 — No Item Name Available (FSG 59)
ManufacturersNaval Sea Systems Command (CAGE 53711); Cisco Systems, Inc. (CAGE 03UZ7)
Successor NSN7025-01-530-9928 — Interface Unit,data Transfer
Technical Specifications
ParameterValue
NSN5999-01-556-6858
Primary Part Number7402703-004
Item NamePort Module Sfp100b
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeZ
Weight0.4050 lbs
Cube0.0270 cu ft
Verified Substitutes 3
7025-01-530-9928GLC-GE-100FX SUCCESSOR
Interface Unit,data Transfer
Cisco Systems Inc
7025-01-603-2039GLC-GE-100FX INTERCHANGEABLE
Interface Unit,data Transfer
Cisco Systems Inc
5895-01-605-62178520471 INTERCHANGEABLE
Transmitter Subassembly
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
7402703-004 PRIMARY Naval Sea Systems Command (USA)
GLC-GE-100FX PRIMARY Cisco Systems, Inc. (USA)
Related Parts
7025-01-530-9928SUCCESSOR
INTERFACE UNIT,DATA TRANSFER
GLC-GE-100FX
7025-01-603-2039INTERCHANGEABLE
INTERFACE UNIT,DATA TRANSFER
GLC-GE-100FX
5895-01-605-6217INTERCHANGEABLE
TRANSMITTER SUBASSEMBLY
8520471

Frequently Asked Questions

What is NSN 5999-01-556-6858?

NSN 5999-01-556-6858 is a Port Module Sfp100b, manufactured by Naval Sea Systems Command, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-556-6858?

NSN 5999-01-556-6858 has 2 cross-referenced part numbers: 7402703-004 (Naval Sea Systems Command), GLC-GE-100FX (Cisco Systems, Inc.).

What NSN replaces 5999-01-556-6858?

There are 3 known substitutes for 5999-01-556-6858: 7025-01-530-9928, 7025-01-603-2039, 5895-01-605-6217. Verify interchangeability with system specifications before substitution.

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