PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20-469Washer,flat

Dresser Industries Inc Leroi Div · NSN 5310-00-262-4737 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-262-4737 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-262-4737. Primary manufacturer part number: 20-469.
Features
  • Washer,flat — FSC 5310
  • Center Hole Shape Style: ROUND
  • Peripheral Shape Style: ROUND
  • Overall Diameter: 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Hole Diameter: 0.677 INCHES MINIMUM AND 0.697 INCHES MAXIMUM IN
  • Material: COPPER OVERALL
  • Thickness: 0.050 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-262-4737, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Dresser Industries Inc Leroi Div. 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-262-4737
Primary Part Number20-469
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerDresser Industries Inc Leroi Div
StatusACTIVE
Center Hole Shape StyleROUND
Peripheral Shape StyleROUND
Overall Diameter1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Hole Diameter0.677 INCHES MINIMUM AND 0.697 INCHES MAXIMUM IN
MaterialCOPPER OVERALL
Thickness0.050 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4310-00-390-3441204-69 INTERCHANGEABLE
Ring Set,piston
Dresser Industries Inc Leroi Div
5310-00-434-4251 INTERCHANGEABLE
Washer,lock
4140-01-051-4427 INTERCHANGEABLE
Impeller,fan,centrifugal
5315-01-174-883820-554 INTERCHANGEABLE
Pin,shoulder,headless
Cmbf, Llc Dba Cmbf Llc
2910-01-318-136220090 INTERCHANGEABLE
Hydraulic Head and Rotor
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
6685-01-539-9196 INTERCHANGEABLE
Gage,pressure,dial Indicating
Cross-Reference Index
Part NumberManufacturer
20-469 PRIMARY Dresser Industries Inc Leroi Div (USA)
Related Parts
4310-00-390-3441INTERCHANGEABLE
RING SET,PISTON
204-69
5310-00-434-4251INTERCHANGEABLE
WASHER,LOCK
4140-01-051-4427INTERCHANGEABLE
IMPELLER,FAN,CENTRIFUGAL
5315-01-174-8838INTERCHANGEABLE
PIN,SHOULDER,HEADLESS
20-554
2910-01-318-1362INTERCHANGEABLE
HYDRAULIC HEAD AND ROTOR
20090
6685-01-539-9196INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING

Frequently Asked Questions

What is NSN 5310-00-262-4737?

NSN 5310-00-262-4737 is a Washer,flat, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-262-4737?

NSN 5310-00-262-4737 has 1 cross-referenced part number: 20-469 (Dresser Industries Inc Leroi Div).

What NSN replaces 5310-00-262-4737?

There are 6 known substitutes for 5310-00-262-4737: 4310-00-390-3441, 5310-00-434-4251, 4140-01-051-4427 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20-469?

Key specifications for 20-469: Center Hole Shape Style: ROUND; Peripheral Shape Style: ROUND; Overall Diameter: 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR. 7 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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