PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

22243Washer,flat

Briggs and Stratton Corp · NSN 5310-00-209-1801 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-209-1801 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-209-1801. Primary manufacturer part number: 22243.
Features
  • Washer,flat — FSC 5310
  • Peripheral Shape Style: ROUND
  • Hole Diameter: 0.375 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
  • Surface Treatment: CHROMIUM OVERALL
  • Material: IRON OVERALL
  • Overall Diameter: 0.750 INCHES NOMINAL IN
  • Features Provided: CASEHARDENED
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Iron Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-209-1801, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Briggs and Stratton Corp. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-209-1801
Primary Part Number22243
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerBriggs and Stratton Corp
StatusCANCELLED
Peripheral Shape StyleROUND
Hole Diameter0.375 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Surface TreatmentCHROMIUM OVERALL
MaterialIRON OVERALL
Overall Diameter0.750 INCHES NOMINAL IN
Features ProvidedCASEHARDENED
Thickness0.094 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5998-00-168-335722-243 INTERCHANGEABLE
Printed Wiring Board
Horizon Aerospace Llc Dba Magnetics Division
4730-00-328-089822243 INTERCHANGEABLE
Tee,pipe to Tube
Triumph Engine Control Systems Llc
1450-00-349-9509 INTERCHANGEABLE
Connector,filter
5305-00-763-69620920-27 INTERCHANGEABLE
Screw,machine
Alliant Techsystems Operations Llc Div Defense Electronic Systems
4730-00-988-7787AS5198J040204 INTERCHANGEABLE
Tee,pipe to Tube
Sae International Dba Sae International
5962-01-010-1423932143-2B INTERCHANGEABLE
Microcircuit,linear
Raytheon Company Dba Raytheon
5998-01-137-077522565 INTERCHANGEABLE
Electronic Components Assembly
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
5975-01-301-36422256-5 INTERCHANGEABLE
Cabinet,electrical Equipment
Scientific Atlanta Inc
4730-01-344-9120222-43 INTERCHANGEABLE
Elbow,pipe to Tube
Cnh Industrial America Llc Dba Cnh America
5945-01-348-9873 INTERCHANGEABLE
Relay,electromagnetic
Cross-Reference Index
Part NumberManufacturer
22565 Briggs and Stratton Corp (USA)
22243 PRIMARY Briggs and Stratton Corp (USA)
Related Parts
5998-00-168-3357INTERCHANGEABLE
PRINTED WIRING BOARD
22-243
4730-00-328-0898INTERCHANGEABLE
TEE,PIPE TO TUBE
22243
1450-00-349-9509INTERCHANGEABLE
CONNECTOR,FILTER
5305-00-763-6962INTERCHANGEABLE
SCREW,MACHINE
0920-27
4730-00-988-7787INTERCHANGEABLE
TEE,PIPE TO TUBE
AS5198J040204
5962-01-010-1423INTERCHANGEABLE
MICROCIRCUIT,LINEAR
932143-2B
5998-01-137-0775INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
22565
5975-01-301-3642INTERCHANGEABLE
CABINET,ELECTRICAL EQUIPMENT
2256-5
4730-01-344-9120INTERCHANGEABLE
ELBOW,PIPE TO TUBE
222-43
5945-01-348-9873INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
6515-01-380-7468INTERCHANGEABLE
BAG,OSTOMY
5330-01-441-9194INTERCHANGEABLE
SEAL,PLAIN
22243

Frequently Asked Questions

What is NSN 5310-00-209-1801?

NSN 5310-00-209-1801 is a Washer,flat, manufactured by Briggs and Stratton Corp, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-209-1801?

NSN 5310-00-209-1801 has 2 cross-referenced part numbers: 22565 (Briggs and Stratton Corp), 22243 (Briggs and Stratton Corp).

What NSN replaces 5310-00-209-1801?

There are 12 known substitutes for 5310-00-209-1801: 5998-00-168-3357, 4730-00-328-0898, 1450-00-349-9509 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 22243?

Key specifications for 22243: Peripheral Shape Style: ROUND; Hole Diameter: 0.375 INCHES NOMINAL IN; Center Hole Shape Style: ROUND; Surface Treatment: CHROMIUM OVERALL. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-209-1801 still in active supply?

NSN 5310-00-209-1801 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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