PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

146203Washer,flat

Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St) · NSN 5310-00-180-5602 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-180-5602 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-180-5602. Primary manufacturer part number: 146203.
Features
  • Washer,flat — FSC 5310
  • Material: STEEL COMP 1010 OVERALL
  • Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Surface Treatment: CADMIUM OVERALL
  • Center Hole Shape Style: ROUND
  • Thickness: 0.062 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Hole Diameter: 0.203 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1010 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-180-5602, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St). Government technical data includes 9 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-180-5602
Primary Part Number146203
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHoneywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St)
StatusACTIVE
MaterialSTEEL COMP 1010 OVERALL
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentCADMIUM OVERALL
Center Hole Shape StyleROUND
Thickness0.062 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Hole Diameter0.203 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter0.531 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5935-00-226-6039 INTERCHANGEABLE
Connector,receptacle,electrical
5935-00-400-1535146-203 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Amphenol Corp Div Amphenol Aerospace Operations
5330-00-953-5206223489 INTERCHANGEABLE
Seal,control Valve
Eaton Aerospace, Llc Dba Jackson South
5998-01-130-6373146203 INTERCHANGEABLE
Electronic Components Assembly
Scientific Atlanta Inc
Cross-Reference Index
Part NumberManufacturer
146203 PRIMARY Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St) (USA)
Related Parts
5935-00-226-6039INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5935-00-400-1535INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
146-203
5330-00-953-5206INTERCHANGEABLE
SEAL,CONTROL VALVE
223489
5998-01-130-6373INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
146203

Frequently Asked Questions

What is NSN 5310-00-180-5602?

NSN 5310-00-180-5602 is a Washer,flat, manufactured by Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St), classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-180-5602?

NSN 5310-00-180-5602 has 1 cross-referenced part number: 146203 (Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St)).

What NSN replaces 5310-00-180-5602?

There are 4 known substitutes for 5310-00-180-5602: 5935-00-226-6039, 5935-00-400-1535, 5330-00-953-5206 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 146203?

Key specifications for 146203: Material: STEEL COMP 1010 OVERALL; Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Surface Treatment: CADMIUM OVERALL; Center Hole Shape Style: ROUND. 9 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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