PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

301827Washer,flat

Simpson-Lawrence Ltd Johnson and Evi Rude Outboard Motors · NSN 5310-00-121-8328 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-121-8328 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-121-8328. Primary manufacturer part number: 301827.
Features
  • Washer,flat — FSC 5310
  • Cross-Sectional Shape Style: RECTANGULAR
  • Overall Diameter: 0.542 INCHES MINIMUM AND 0.552 INCHES MAXIMUM IN
  • Thickness: 0.030 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN
  • Peripheral Shape Style: ROUND
  • Center Hole Shape Style: ROUND
  • Hole Diameter: 0.266 INCHES NOMINAL IN
  • Material: COPPER ALLOY OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-121-8328, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Simpson-Lawrence Ltd Johnson and Evi Rude Outboard Motors. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-121-8328
Primary Part Number301827
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerSimpson-Lawrence Ltd Johnson and Evi Rude Outboard Motors
StatusCANCELLED
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter0.542 INCHES MINIMUM AND 0.552 INCHES MAXIMUM IN
Thickness0.030 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Center Hole Shape StyleROUND
Hole Diameter0.266 INCHES NOMINAL IN
MaterialCOPPER ALLOY OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
6610-00-464-67483137-2 INTERCHANGEABLE
Indicator Standoff
Kearflex Engineering Company
5935-00-833-00767209503P2 INTERCHANGEABLE
Connector,receptacle,electrical
Lockheed Martin Corporation Div Rms
5310-01-571-8348493-227 INTERCHANGEABLE
Washer,flat 6,aircr
Ajax Tocco Magnethermic Corporation Dba Pines Engineering Div Pines Engineering
6515-01-582-81588154A-MR-3 INTERCHANGEABLE
Pad,crest,toe
Pedifix, Inc.
Cross-Reference Index
Part NumberManufacturer
301827 Simpson-Lawrence Ltd Johnson and Evi Rude Outboard Motors (GBR)
31372 Bell and Howell Phillipsburg Co Corporate Offices (USA)
0301827 Simpson-Lawrence Ltd Johnson and Evi Rude Outboard Motors (GBR)
301827 Outboard Marine Corp Johnson Motors Div (USA)
Related Parts
6610-00-464-6748INTERCHANGEABLE
INDICATOR STANDOFF
3137-2
5935-00-833-0076INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
7209503P2
5310-01-571-8348INTERCHANGEABLE
WASHER,FLAT 6,AIRCR
493-227
6515-01-582-8158INTERCHANGEABLE
PAD,CREST,TOE
8154A-MR-3

Frequently Asked Questions

What is NSN 5310-00-121-8328?

NSN 5310-00-121-8328 is a Washer,flat, manufactured by Simpson-Lawrence Ltd Johnson and Evi Rude Outboard Motors, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-121-8328?

NSN 5310-00-121-8328 has 4 cross-referenced part numbers: 301827 (Simpson-Lawrence Ltd Johnson and Evi Rude Outboard Motors), 31372 (Bell and Howell Phillipsburg Co Corporate Offices), 0301827 (Simpson-Lawrence Ltd Johnson and Evi Rude Outboard Motors), 301827 (Outboard Marine Corp Johnson Motors Div).

What NSN replaces 5310-00-121-8328?

There are 4 known substitutes for 5310-00-121-8328: 6610-00-464-6748, 5935-00-833-0076, 5310-01-571-8348 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 301827?

Key specifications for 301827: Cross-Sectional Shape Style: RECTANGULAR; Overall Diameter: 0.542 INCHES MINIMUM AND 0.552 INCHES MAXIMUM IN; Thickness: 0.030 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN; Peripheral Shape Style: ROUND. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-121-8328 still in active supply?

NSN 5310-00-121-8328 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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