PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

KB10023Washer,flat

Hiller Aircraft Corporation · NSN 5310-00-441-3390 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-441-3390 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-441-3390. Primary manufacturer part number: KB10023.
Features
  • Washer,flat — FSC 5310
  • Hole Diameter: 0.125 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
  • Thickness: 0.031 INCHES NOMINAL IN
  • Material: CELLULOSE OVERALL
  • Peripheral Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Overall Diameter: 0.266 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Cellulose Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-441-3390, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hiller Aircraft Corporation. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-441-3390
Primary Part NumberKB10023
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHiller Aircraft Corporation
StatusCANCELLED
Hole Diameter0.125 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Thickness0.031 INCHES NOMINAL IN
MaterialCELLULOSE OVERALL
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter0.266 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5330-00-365-7671 INTERCHANGEABLE
Gasket
Cross-Reference Index
Part NumberManufacturer
KB10023 Hiller Aircraft Corporation (USA)
FF-W-92B TYA GRII CLFIBER Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MIL-G-12803C I/N F326128M6 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5330-00-365-7671INTERCHANGEABLE
GASKET

Frequently Asked Questions

What is NSN 5310-00-441-3390?

NSN 5310-00-441-3390 is a Washer,flat, manufactured by Hiller Aircraft Corporation, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-441-3390?

NSN 5310-00-441-3390 has 3 cross-referenced part numbers: KB10023 (Hiller Aircraft Corporation), FF-W-92B TYA GRII CLFIBER (Federal Specifications Promulgated by General Services Administration Washington DC), MIL-G-12803C I/N F326128M6 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5310-00-441-3390?

There is 1 known substitute for 5310-00-441-3390: 5330-00-365-7671. Verify interchangeability with system specifications before substitution.

What are the specifications of KB10023?

Key specifications for KB10023: Hole Diameter: 0.125 INCHES NOMINAL IN; Center Hole Shape Style: ROUND; Thickness: 0.031 INCHES NOMINAL IN; Material: CELLULOSE OVERALL. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-441-3390 still in active supply?

NSN 5310-00-441-3390 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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