PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FFW84CLASSESTYLE2Washer,lock

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5310-00-194-7344 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-194-7344 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-194-7344. Primary manufacturer part number: FFW84CLASSESTYLE2.
Features
  • Washer,lock — FSC 5310
  • Material: COPPER ALLOY OVERALL
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Hole Diameter: 0.194 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
  • Material Thickness: 0.0468 INCHES NOMINAL IN
  • Hardness Rating: 90.0 ROCKWELL B MINIMUM
  • Nondefinitive Spec/std Data: E CLASS AND 2 STYLE
  • Outside Diameter: 0.337 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-194-7344, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-194-7344
Primary Part NumberFFW84CLASSESTYLE2
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusCANCELLED
MaterialCOPPER ALLOY OVERALL
Style DesignatorSPLIT HELICAL-RIGHT HAND
Hole Diameter0.194 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
Material Thickness0.0468 INCHES NOMINAL IN
Hardness Rating90.0 ROCKWELL B MINIMUM
Nondefinitive Spec/std DataE CLASS AND 2 STYLE
Outside Diameter0.337 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5310-00-209-1219 INTERCHANGEABLE
Washer,lock
5310-00-209-606904S130504-10 INTERCHANGEABLE
Washer,lock
Herley Chicago Dba Stewart Warner Electronics
5310-00-261-8278118517-007 INTERCHANGEABLE
Washer,lock
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5310-00-262-358379988PC7 INTERCHANGEABLE
Washer,lock
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5310-00-264-1149 INTERCHANGEABLE
Washer,lock
5310-00-527-40319001491 INTERCHANGEABLE
Washer,lock
Us Army Aviation and Missile Command
5310-00-550-1675 INTERCHANGEABLE
Washer,lock
5310-00-591-341224-00006-029 INTERCHANGEABLE
Washer,lock
Raytheon Company
5310-00-596-7689 INTERCHANGEABLE
Washer,lock
Cross-Reference Index
Part NumberManufacturer
FFW84CLASSESTYLE2 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
310008000 Herley Chicago Dba Stewart Warner Electronics (USA)
HP799P10M Raytheon Company Dba Raytheon Co (USA)
43W5740-50 Naval Ordnance Standards (USA)
FFW84 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
575-4501-1442937 Naval Ship Systems Command (USA)
Related Parts
5310-00-209-1219INTERCHANGEABLE
WASHER,LOCK
5310-00-209-6069INTERCHANGEABLE
WASHER,LOCK
04S130504-10
5310-00-261-8278INTERCHANGEABLE
WASHER,LOCK
118517-007
5310-00-262-3583INTERCHANGEABLE
WASHER,LOCK
79988PC7
5310-00-264-1149INTERCHANGEABLE
WASHER,LOCK
5310-00-527-4031INTERCHANGEABLE
WASHER,LOCK
9001491
5310-00-550-1675INTERCHANGEABLE
WASHER,LOCK
5310-00-591-3412INTERCHANGEABLE
WASHER,LOCK
24-00006-029
5310-00-596-7689INTERCHANGEABLE
WASHER,LOCK

Frequently Asked Questions

What is NSN 5310-00-194-7344?

NSN 5310-00-194-7344 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 5310-00-194-7344?

NSN 5310-00-194-7344 has 6 cross-referenced part numbers: FFW84CLASSESTYLE2 (Federal Specifications Promulgated by General Services Administration Washington DC), 310008000 (Herley Chicago Dba Stewart Warner Electronics), HP799P10M (Raytheon Company Dba Raytheon Co), 43W5740-50 (Naval Ordnance Standards), FFW84 (Federal Specifications Promulgated by General Services Administration Washington DC) and 1 more.

What NSN replaces 5310-00-194-7344?

There are 9 known substitutes for 5310-00-194-7344: 5310-00-209-1219, 5310-00-209-6069, 5310-00-261-8278 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FFW84CLASSESTYLE2?

Key specifications for FFW84CLASSESTYLE2: Material: COPPER ALLOY OVERALL; Style Designator: SPLIT HELICAL-RIGHT HAND; Hole Diameter: 0.194 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN; Material Thickness: 0.0468 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-194-7344 still in active supply?

NSN 5310-00-194-7344 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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