PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2510026Washer,flat

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5310-01-264-1645 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-264-1645 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-264-1645. Primary manufacturer part number: 2510026.
Features
  • Washer,flat — FSC 5310
  • Material: STEEL COMP 303 OVERALL
  • Center Hole Shape Style: ROUND
  • Overall Diameter: 0.521 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN
  • Material Document and Classification: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Hole Diameter: 0.1925 INCHES MINIMUM AND 0.1985 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Peripheral Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 303 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-264-1645, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 8 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-264-1645
Primary Part Number2510026
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
MaterialSTEEL COMP 303 OVERALL
Center Hole Shape StyleROUND
Overall Diameter0.521 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN
Material Document and ClassificationASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Hole Diameter0.1925 INCHES MINIMUM AND 0.1985 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Peripheral Shape StyleROUND
Thickness0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5930-00-987-4676252527T91 INTERCHANGEABLE
Switch,pressure
Navistar Intl Corp Truck Br Ohio Plant
Cross-Reference Index
Part NumberManufacturer
2510026 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
5930-00-987-4676INTERCHANGEABLE
SWITCH,PRESSURE
252527T91

Frequently Asked Questions

What is NSN 5310-01-264-1645?

NSN 5310-01-264-1645 is a Washer,flat, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-264-1645?

NSN 5310-01-264-1645 has 1 cross-referenced part number: 2510026 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 5310-01-264-1645?

There is 1 known substitute for 5310-01-264-1645: 5930-00-987-4676. Verify interchangeability with system specifications before substitution.

What are the specifications of 2510026?

Key specifications for 2510026: Material: STEEL COMP 303 OVERALL; Center Hole Shape Style: ROUND; Overall Diameter: 0.521 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN; Material Document and Classification: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 8 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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