PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

41-225Block,telephone Protector

Northern Telecom Inc Telecom Distribution Div · NSN 5920-00-160-5207 · FSC 5920 · No Item Name Available
Verified by PartsTable
NSN 5920-00-160-5207 — this item is cataloged by the U.S. Government under National Stock Number 5920-00-160-5207. Primary manufacturer part number: 41-225.
Features
  • Block,telephone Protector — FSC 5920
  • Overall Thickness: 0.250 INCHES NOMINAL IN
  • Usage Design: USED IN TELEPHONE CIRCUITS FOR PROTECTION AGAINST LIGHTNING OR HIGH VOLTAGE SURGES
  • Material: PLASTIC PHENOL FORMALDEHYDE (PMO)
  • Circuit Protector Block Location: ABOVE GROUND SIDE
  • Shape: RECTANGULAR
  • 2 verified cross-references
  • Primary manufacturer: Northern Telecom Inc Telecom Distribution Div
Applications
  • Applications requiring Plastic Phenol Formaldehyde (pmo) construction
General Description

The Block,telephone Protector, cataloged under National Stock Number 5920-00-160-5207, is classified within Federal Supply Class 5920 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Northern Telecom Inc Telecom Distribution Div. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5920-00-160-5207
Primary Part Number41-225
Item NameBlock,telephone Protector
FSC / FSG5920 / 59 — No Item Name Available
ManufacturerNorthern Telecom Inc Telecom Distribution Div
StatusCANCELLED
Overall Thickness0.250 INCHES NOMINAL IN
Usage DesignUSED IN TELEPHONE CIRCUITS FOR PROTECTION AGAINST LIGHTNING OR HIGH VOLTAGE SURGES
MaterialPLASTIC PHENOL FORMALDEHYDE (PMO)
Circuit Protector Block LocationABOVE GROUND SIDE
ShapeRECTANGULAR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
6930-00-214-7009560-183 INTERCHANGEABLE
Gage,fuel Pressure
Hickok Waekon Llc
5940-00-259-905814078057-9 INTERCHANGEABLE
Terminal,lug
Entron Industries Limited Partnership Dba Entron Industries Property Div
3030-00-269-9709347 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
5962-01-088-985341225 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Div Rmd Strategic
6680-01-121-014741225 INTERCHANGEABLE
Transmitter,liquid Quantity
Setra Systems, Inc. Dba Gems Sensors
Cross-Reference Index
Part NumberManufacturer
41-225 Northern Telecom Inc Telecom Distribution Div (USA)
P495 Reliance Comm/tec Corp Reliable Electric Div Utility Products (USA)
Related Parts
6930-00-214-7009INTERCHANGEABLE
GAGE,FUEL PRESSURE
560-183
5940-00-259-9058INTERCHANGEABLE
TERMINAL,LUG
14078057-9
3030-00-269-9709INTERCHANGEABLE
BELT,V
347
5962-01-088-9853INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
41225
6680-01-121-0147INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
41225

Frequently Asked Questions

What is NSN 5920-00-160-5207?

NSN 5920-00-160-5207 is a Block,telephone Protector, manufactured by Northern Telecom Inc Telecom Distribution Div, classified under FSC 5920 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5920-00-160-5207?

NSN 5920-00-160-5207 has 2 cross-referenced part numbers: 41-225 (Northern Telecom Inc Telecom Distribution Div), P495 (Reliance Comm/tec Corp Reliable Electric Div Utility Products).

What NSN replaces 5920-00-160-5207?

There are 5 known substitutes for 5920-00-160-5207: 6930-00-214-7009, 5940-00-259-9058, 3030-00-269-9709 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 41-225?

Key specifications for 41-225: Overall Thickness: 0.250 INCHES NOMINAL IN; Usage Design: USED IN TELEPHONE CIRCUITS FOR PROTECTION AGAINST LIGHTNING OR HIGH VOLTAGE SURGES; Material: PLASTIC PHENOL FORMALDEHYDE (PMO); Circuit Protector Block Location: ABOVE GROUND SIDE. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5920-00-160-5207 still in active supply?

NSN 5920-00-160-5207 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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