PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

52-257-006ATerminal Junction Block,sectiona

Spectrum Controls Inc Connector Div · NSN 5940-01-511-4550 · FSC 5940 · No Item Name Available
Verified by PartsTable
NSN 5940-01-511-4550 — this item is cataloged by the U.S. Government under National Stock Number 5940-01-511-4550. Primary manufacturer part number: 52-257-006A.
Features
  • Terminal Junction Block,sectiona — FSC 5940
  • Current Rating in Amps: 20.0
  • Current Type: AC
  • Voltage Rating: 250.0 VOLTS NOMINAL
  • 4 verified cross-references
  • Primary manufacturer: Spectrum Controls Inc Connector Div
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Terminal Junction Block,sectiona, cataloged under National Stock Number 5940-01-511-4550, 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 Spectrum Controls Inc Connector Div. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5940-01-511-4550
Primary Part Number52-257-006A
Item NameTerminal Junction Block,sectiona
FSC / FSG5940 / 59 — No Item Name Available
ManufacturerSpectrum Controls Inc Connector Div
StatusACTIVE
Current Rating in Amps20.0
Current TypeAC
Voltage Rating250.0 VOLTS NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6625-00-322-419118797 INTERCHANGEABLE
Probe Subassembly
Johnson Controls, Inc Div Building Efficiency
4720-00-447-3584FG1251HHH0404 INTERCHANGEABLE
Hose Assembly,nonmetallic
Danfoss Power Solutions II, Llc
5940-01-525-066652-257-006 INTERCHANGEABLE
Terminal Board
Spectrum Control, Inc.
Cross-Reference Index
Part NumberManufacturer
52-257-006A PRIMARY Spectrum Controls Inc Connector Div (USA)
PL9903A5000-1 REV B ITEM NO. 5 L-3 Communications Westwood Corporation Dba Edi Division Div Tano Division (USA)
PL9903A5000-1 L-3 Communications Westwood Corporation Dba Edi Division Use CAGE Code 23905 for Cataloging Div Tano Division (USA)
18797 L-3 Communications Westwood Corporation Dba Edi Division Div Tano Division (USA)
Related Parts
6625-00-322-4191INTERCHANGEABLE
PROBE SUBASSEMBLY
18797
4720-00-447-3584INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
FG1251HHH0404
5940-01-525-0666INTERCHANGEABLE
TERMINAL BOARD
52-257-006

Frequently Asked Questions

What is NSN 5940-01-511-4550?

NSN 5940-01-511-4550 is a Terminal Junction Block,sectiona, manufactured by Spectrum Controls Inc Connector Div, classified under FSC 5940 (No Item Name Available). Status: active.

What are the part numbers for NSN 5940-01-511-4550?

NSN 5940-01-511-4550 has 4 cross-referenced part numbers: 52-257-006A (Spectrum Controls Inc Connector Div), PL9903A5000-1 REV B ITEM NO. 5 (L-3 Communications Westwood Corporation Dba Edi Division Div Tano Division), PL9903A5000-1 (L-3 Communications Westwood Corporation Dba Edi Division Use CAGE Code 23905 for Cataloging Div Tano Division), 18797 (L-3 Communications Westwood Corporation Dba Edi Division Div Tano Division).

What NSN replaces 5940-01-511-4550?

There are 3 known substitutes for 5940-01-511-4550: 6625-00-322-4191, 4720-00-447-3584, 5940-01-525-0666. Verify interchangeability with system specifications before substitution.

What are the specifications of 52-257-006A?

Key specifications for 52-257-006A: Current Rating in Amps: 20.0; Special Features: 6 TERMINALS; Current Type: AC; End Item Identification: PANEL, CONTROL, 400 HZ. 5 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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