PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

33800Washer,flat

Fastenal Company · NSN 5310-01-563-2146 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-563-2146 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-563-2146. Primary manufacturer part number: 33800.
Features
  • Washer,flat — FSC 5310
  • Material: STEEL OVERALL
  • Overall Diameter: 1.055 INCHES MINIMUM AND 1.092 INCHES MAXIMUM IN
  • Thickness: 0.074 INCHES MINIMUM AND 0.121 INCHES MAXIMUM IN
  • Hole Diameter: 0.526 INCHES MINIMUM AND 0.546 INCHES MAXIMUM IN
  • Peripheral Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Center Hole Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-563-2146, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Fastenal Company. Government technical data includes 7 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-563-2146
Primary Part Number33800
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFastenal Company
StatusACTIVE
MaterialSTEEL OVERALL
Overall Diameter1.055 INCHES MINIMUM AND 1.092 INCHES MAXIMUM IN
Thickness0.074 INCHES MINIMUM AND 0.121 INCHES MAXIMUM IN
Hole Diameter0.526 INCHES MINIMUM AND 0.546 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5330-00-627-65762S1218 INTERCHANGEABLE
Gasket
Caterpillar Inc Div Caterpillar Defense
5815-00-915-2877 INTERCHANGEABLE
Spring
6515-01-116-071733800 INTERCHANGEABLE
Catheter,tracheal
Cardinal Health 200, Llc
5315-01-219-248533800 INTERCHANGEABLE
Pin,grooved,headed
Ridge Tool Company
6210-01-226-6440SRP90LD1MD-C1 INTERCHANGEABLE
Fixture,lighting
Abb Installation Products Inc
6520-01-371-709133800 INTERCHANGEABLE
Remover,dental Crown
Almore International Inc
5210-01-428-547133-430 INTERCHANGEABLE
Tape,measuring
The Stanley Works Dba Stanley Proto
5310-01-556-665512759-00585 INTERCHANGEABLE
Washer,flat
Fastenal Company Dba Fastenal Co
6550-01-559-750333800 INTERCHANGEABLE
Assay,thyroxine
Beckman Coulter, Inc
Cross-Reference Index
Part NumberManufacturer
33800 PRIMARY Fastenal Company (USA)
Related Parts
5330-00-627-6576INTERCHANGEABLE
GASKET
2S1218
5815-00-915-2877INTERCHANGEABLE
SPRING
6515-01-116-0717INTERCHANGEABLE
CATHETER,TRACHEAL
33800
5315-01-219-2485INTERCHANGEABLE
PIN,GROOVED,HEADED
33800
6210-01-226-6440INTERCHANGEABLE
FIXTURE,LIGHTING
SRP90LD1MD-C1
6520-01-371-7091INTERCHANGEABLE
REMOVER,DENTAL CROWN
33800
5210-01-428-5471INTERCHANGEABLE
TAPE,MEASURING
33-430
5310-01-556-6655INTERCHANGEABLE
WASHER,FLAT
12759-00585
6550-01-559-7503INTERCHANGEABLE
ASSAY,THYROXINE
33800

Frequently Asked Questions

What is NSN 5310-01-563-2146?

NSN 5310-01-563-2146 is a Washer,flat, manufactured by Fastenal Company, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-563-2146?

NSN 5310-01-563-2146 has 1 cross-referenced part number: 33800 (Fastenal Company).

What NSN replaces 5310-01-563-2146?

There are 9 known substitutes for 5310-01-563-2146: 5330-00-627-6576, 5815-00-915-2877, 6515-01-116-0717 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 33800?

Key specifications for 33800: Material: STEEL OVERALL; Overall Diameter: 1.055 INCHES MINIMUM AND 1.092 INCHES MAXIMUM IN; Part Name Assigned by Controlling Agency: 1/2 INCH FLAT WASHER, THRU-HARDENED HIGH STRENGTH, SAE, PLAIN IN; Thickness: 0.074 INCHES MINIMUM AND 0.121 INCHES MAXIMUM IN. 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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