PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5240381Washer,flat

Army, United States Department of the Dba Rock Island Arsenal Jmtc · NSN 5310-00-209-1836 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-209-1836 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-209-1836. Primary manufacturer part number: 5240381.
Features
  • Washer,flat — FSC 5310
  • Material: COPPER OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Thickness: 0.026 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
  • Peripheral Shape Style: ROUND
  • Center Hole Shape Style: ROUND
  • Hole Diameter: 0.438 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
  • Overall Diameter: 0.684 INCHES MINIMUM AND 0.686 INCHES MAXIMUM 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 5310-00-209-1836, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-209-1836
Primary Part Number5240381
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerArmy, United States Department of the Dba Rock Island Arsenal Jmtc
StatusACTIVE
MaterialCOPPER OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Thickness0.026 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Center Hole Shape StyleROUND
Hole Diameter0.438 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
Overall Diameter0.684 INCHES MINIMUM AND 0.686 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6660-01-466-154717010-1 INTERCHANGEABLE
Detector,wind Direction
Belfort Instrument Company
Cross-Reference Index
Part NumberManufacturer
5240381 PRIMARY Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA)
Related Parts
6660-01-466-1547INTERCHANGEABLE
DETECTOR,WIND DIRECTION
17010-1

Frequently Asked Questions

What is NSN 5310-00-209-1836?

NSN 5310-00-209-1836 is a Washer,flat, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-209-1836?

NSN 5310-00-209-1836 has 1 cross-referenced part number: 5240381 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).

What NSN replaces 5310-00-209-1836?

There is 1 known substitute for 5310-00-209-1836: 6660-01-466-1547. Verify interchangeability with system specifications before substitution.

What are the specifications of 5240381?

Key specifications for 5240381: Material: COPPER OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Thickness: 0.026 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN; Peripheral Shape Style: ROUND. 7 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com