PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-A-50552Box Connector,electrical

Federal Commercial Item Description Promulgated by General Services Administration Washington DC · NSN 5975-00-199-9563 · FSC 5975 · No Item Name Available
Verified by PartsTable
NSN 5975-00-199-9563 — this item is cataloged by the U.S. Government under National Stock Number 5975-00-199-9563. Primary manufacturer part number: A-A-50552.
Features
  • Box Connector,electrical — FSC 5975
  • Style Designator: SCREW CLAMP
  • End Type: EXTERNAL THREAD SECOND END
  • Furnished Items: LOCKNUT
  • Item Accommodated Trade Size: 0.375 INCHES FIRST END IN
  • Nondefinitive Spec/std Data: 1 CLASS AND A STYLE AND 1 TYPE
  • Surface Treatment: CADMIUM OR ZINC
  • Thread Series Designator: NPT SECOND END
Applications
  • Electrical interconnection
  • Signal interface mating
  • Quick-disconnect coupling
  • Applications requiring Iron or Steel construction
General Description

The Box Connector,electrical, cataloged under National Stock Number 5975-00-199-9563, is classified within Federal Supply Class 5975 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5975-00-199-9563
Primary Part NumberA-A-50552
Item NameBox Connector,electrical
FSC / FSG5975 / 59 — No Item Name Available
ManufacturerFederal Commercial Item Description Promulgated by General Services Administration Washington DC
StatusCANCELLED
Style DesignatorSCREW CLAMP
End TypeEXTERNAL THREAD SECOND END
Furnished ItemsLOCKNUT
Item Accommodated Trade Size0.375 INCHES FIRST END IN
Nondefinitive Spec/std Data1 CLASS AND A STYLE AND 1 TYPE
Surface TreatmentCADMIUM OR ZINC
Thread Series DesignatorNPT SECOND END
Nominal Thread Size0.500 INCHES SECOND END IN
End TypeCLAMP SQUEEZE FIRST END
MaterialIRON OR STEEL
Supplementary FeaturesEND ITEM SHIOP EQUIPMENT,GENERAL PURPOSE REPAIR,TRAILER,SEMI-MOUNTED
Conduit Type AccommodatedFLEXIBLE METALLIC FIRST END
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
9390-00-291-6251 INTERCHANGEABLE
Nonmetallic Special Shaped Secti
5330-00-401-522705-5446 INTERCHANGEABLE
Packing,preformed
Bacharach, Inc.
2940-00-444-905542741 INTERCHANGEABLE
Filter Element,intake Air Cleane
Wix Corp
5935-00-503-61289063259 INTERCHANGEABLE
Connector,receptacle,electrical
Us Army Aviation and Missile Command
5331-00-641-4350 INTERCHANGEABLE
O-Ring
5905-00-721-11920818-0016 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Keysight Technologies Inc
5330-00-727-5241 INTERCHANGEABLE
Packing,cylinder
5340-01-286-54112741 INTERCHANGEABLE
Plug,protective,dust and Moistur
Heyco Inc Dba Heyco Products
5330-01-356-50202741 INTERCHANGEABLE
Seal,plain
Graham-White Manufacturing Co Div Graham-White Manufacturing Co. Inc.
5340-01-672-5524 INTERCHANGEABLE
Bracket,mounting
Cross-Reference Index
Part NumberManufacturer
A-A-50552 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
27-41 Egs Electric Co Llc (USA)
301 Abb Installation Products Inc (USA)
AA50552-00I-1-A-D Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
W-F-406 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
9390-00-291-6251INTERCHANGEABLE
NONMETALLIC SPECIAL SHAPED SECTI
5330-00-401-5227INTERCHANGEABLE
PACKING,PREFORMED
05-5446
2940-00-444-9055INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
42741
5935-00-503-6128INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
9063259
5331-00-641-4350INTERCHANGEABLE
O-RING
5905-00-721-1192INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
0818-0016
5330-00-727-5241INTERCHANGEABLE
PACKING,CYLINDER
5340-01-286-5411INTERCHANGEABLE
PLUG,PROTECTIVE,DUST AND MOISTUR
2741
5330-01-356-5020INTERCHANGEABLE
SEAL,PLAIN
2741
5340-01-672-5524INTERCHANGEABLE
BRACKET,MOUNTING
5340-01-721-0281INTERCHANGEABLE
HARDWARE KIT,ELECTRONIC EQUIPMEN
2741

Frequently Asked Questions

What is NSN 5975-00-199-9563?

NSN 5975-00-199-9563 is a Box Connector,electrical, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 5975 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5975-00-199-9563?

NSN 5975-00-199-9563 has 5 cross-referenced part numbers: A-A-50552 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 27-41 (Egs Electric Co Llc), 301 (Abb Installation Products Inc), AA50552-00I-1-A-D (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), W-F-406 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5975-00-199-9563?

There are 11 known substitutes for 5975-00-199-9563: 9390-00-291-6251, 5330-00-401-5227, 2940-00-444-9055 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-A-50552?

Key specifications for A-A-50552: Style Designator: SCREW CLAMP; End Type: EXTERNAL THREAD SECOND END; Furnished Items: LOCKNUT; Item Accommodated Trade Size: 0.375 INCHES FIRST END IN. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5975-00-199-9563 still in active supply?

NSN 5975-00-199-9563 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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