PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-A-50553Locknut,electrical Conduit

Federal Commercial Item Description Promulgated by General Services Administration Washington DC · NSN 5975-01-472-8645 · FSC 5975 · No Item Name Available
Verified by PartsTable
NSN 5975-01-472-8645 — this item is cataloged by the U.S. Government under National Stock Number 5975-01-472-8645. Primary manufacturer part number: A-A-50553.
Features
  • Locknut,electrical Conduit — FSC 5975
  • Screw Thread Series Designator: UNF
  • Material: STEEL
  • Drive Type: ANY ACCEPTABLE
  • Thread Type: STRAIGHT
  • Thread Size: 0.75-3/4
  • Conduit Size Accommodated: 0.750 INCHES NOMINAL IN
  • 3 verified cross-references
Applications
  • Applications requiring Steel construction
General Description

The Locknut,electrical Conduit, cataloged under National Stock Number 5975-01-472-8645, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5975-01-472-8645
Primary Part NumberA-A-50553
Item NameLocknut,electrical Conduit
FSC / FSG5975 / 59 — No Item Name Available
ManufacturerFederal Commercial Item Description Promulgated by General Services Administration Washington DC
StatusACTIVE
Screw Thread Series DesignatorUNF
MaterialSTEEL
Drive TypeANY ACCEPTABLE
Thread TypeSTRAIGHT
Thread Size0.75-3/4
Conduit Size Accommodated0.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5975-00-100-8767 INTERCHANGEABLE
Locknut,electrical Conduit
Cross-Reference Index
Part NumberManufacturer
A-A-50553 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AA5055331P102S Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
WF408-31P102S Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5975-00-100-8767INTERCHANGEABLE
LOCKNUT,ELECTRICAL CONDUIT

Frequently Asked Questions

What is NSN 5975-01-472-8645?

NSN 5975-01-472-8645 is a Locknut,electrical Conduit, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 5975 (No Item Name Available). Status: active.

What are the part numbers for NSN 5975-01-472-8645?

NSN 5975-01-472-8645 has 3 cross-referenced part numbers: A-A-50553 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), AA5055331P102S (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), WF408-31P102S (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5975-01-472-8645?

There is 1 known substitute for 5975-01-472-8645: 5975-00-100-8767. Verify interchangeability with system specifications before substitution.

What are the specifications of A-A-50553?

Key specifications for A-A-50553: Screw Thread Series Designator: UNF; End Item Identification: 2320013544528; Material: STEEL; Drive Type: ANY ACCEPTABLE. 7 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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