PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

203740Circuit Card Assembly

Northern Telecom Inc Telecom Distribution Div · NSN 5998-00-520-2577 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-00-520-2577 — this item is cataloged by the U.S. Government under National Stock Number 5998-00-520-2577. Primary manufacturer part number: 203740.
Features
  • Circuit Card Assembly — FSC 5998
  • 1 verified cross-reference
  • Primary manufacturer: Northern Telecom Inc Telecom Distribution Div
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Circuit Card Assembly, cataloged under National Stock Number 5998-00-520-2577, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Northern Telecom Inc Telecom Distribution Div. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5998-00-520-2577
Primary Part Number203740
Item NameCircuit Card Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerNorthern Telecom Inc Telecom Distribution Div
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Weight0.4000 lbs
Cube0.0960 cu ft
Verified Substitutes 2
5340-00-350-6504 INTERCHANGEABLE
Cover,access
3110-00-554-52386206ZMAX INTERCHANGEABLE
Bearing,ball,annular
Naval Ship Systems Command
Cross-Reference Index
Part NumberManufacturer
203740 Northern Telecom Inc Telecom Distribution Div (USA)
Related Parts
5340-00-350-6504INTERCHANGEABLE
COVER,ACCESS
3110-00-554-5238INTERCHANGEABLE
BEARING,BALL,ANNULAR
6206ZMAX

Frequently Asked Questions

What is NSN 5998-00-520-2577?

NSN 5998-00-520-2577 is a Circuit Card Assembly, manufactured by Northern Telecom Inc Telecom Distribution Div, classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-00-520-2577?

NSN 5998-00-520-2577 has 1 cross-referenced part number: 203740 (Northern Telecom Inc Telecom Distribution Div).

What NSN replaces 5998-00-520-2577?

There are 2 known substitutes for 5998-00-520-2577: 5340-00-350-6504, 3110-00-554-5238. Verify interchangeability with system specifications before substitution.

What are the specifications of 203740?

Key specifications for 203740: Overall Height: 0.395 INCHES NOMINAL IN; Overall Length: 3.875 INCHES NOMINAL IN; Overall Width: 2.562 INCHES NOMINAL IN; Special Features: CAPACITOR 9; DIODE 3; INTEGRATED CIRCUIT 4; PAD 3; PRINTED WIRING BOARD 1; RESISTOR 23; TRANSIST0R 3. 8 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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