PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FFW84CLASSCWasher,lock

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5310-00-595-7143 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-595-7143 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-595-7143. Primary manufacturer part number: FFW84CLASSC.
Features
  • Washer,lock — FSC 5310
  • Hole Diameter: 0.221 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN
  • Material Thickness: 0.078 INCHES NOMINAL IN
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Outside Diameter: 0.438 INCHES NOMINAL IN
  • Material: STEEL CORROSION RESISTING OVERALL
  • 1 verified cross-reference
  • Primary manufacturer: Federal Specifications Promulgated by General Services Administration Washington DC
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-595-7143, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-595-7143
Primary Part NumberFFW84CLASSC
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusCANCELLED
Hole Diameter0.221 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN
Material Thickness0.078 INCHES NOMINAL IN
Style DesignatorSPLIT HELICAL-RIGHT HAND
Outside Diameter0.438 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5310-00-262-3491158255PC56 INTERCHANGEABLE
Washer,lock
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5310-00-262-3558158255PC46 INTERCHANGEABLE
Washer,lock
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5310-00-262-3559 INTERCHANGEABLE
Washer,lock
5310-00-262-356212Z3019-9 INTERCHANGEABLE
Washer,lock
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5310-00-262-3563 INTERCHANGEABLE
Washer,lock
5310-00-262-3564 INTERCHANGEABLE
Washer,lock
5310-00-262-3570 INTERCHANGEABLE
Washer,lock
Cross-Reference Index
Part NumberManufacturer
FFW84CLASSC Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5310-00-262-3491INTERCHANGEABLE
WASHER,LOCK
158255PC56
5310-00-262-3558INTERCHANGEABLE
WASHER,LOCK
158255PC46
5310-00-262-3559INTERCHANGEABLE
WASHER,LOCK
5310-00-262-3562INTERCHANGEABLE
WASHER,LOCK
12Z3019-9
5310-00-262-3563INTERCHANGEABLE
WASHER,LOCK
5310-00-262-3564INTERCHANGEABLE
WASHER,LOCK
5310-00-262-3570INTERCHANGEABLE
WASHER,LOCK

Frequently Asked Questions

What is NSN 5310-00-595-7143?

NSN 5310-00-595-7143 is a Washer,lock, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-595-7143?

NSN 5310-00-595-7143 has 1 cross-referenced part number: FFW84CLASSC (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5310-00-595-7143?

There are 7 known substitutes for 5310-00-595-7143: 5310-00-262-3491, 5310-00-262-3558, 5310-00-262-3559 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FFW84CLASSC?

Key specifications for FFW84CLASSC: Hole Diameter: 0.221 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN; Material Thickness: 0.078 INCHES NOMINAL IN; Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 0.438 INCHES NOMINAL IN. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-595-7143 still in active supply?

NSN 5310-00-595-7143 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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