PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

200405Washer,flat

L3harris Technologies, Inc. Dba Harris Corporation · NSN 5310-00-828-5451 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-828-5451 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-828-5451. Primary manufacturer part number: 200405.
Features
  • Washer,flat — FSC 5310
  • Thickness: 0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
  • Center Hole Shape Style: ROUND
  • Hole Diameter: 0.312 INCHES NOMINAL IN
  • Material: COPPER ALLOY OVERALL
  • Surface Treatment: CADMIUM AND CHROMATE OVERALL
  • Overall Diameter: 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN
  • Peripheral Shape Style: ROUND
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 5310-00-828-5451, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is L3harris Technologies, Inc. Dba Harris Corporation. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, 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
NSN5310-00-828-5451
Primary Part Number200405
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerL3harris Technologies, Inc. Dba Harris Corporation
StatusACTIVE
Thickness0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
Center Hole Shape StyleROUND
Hole Diameter0.312 INCHES NOMINAL IN
MaterialCOPPER ALLOY OVERALL
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Overall Diameter0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6685-00-179-4818P200-405 INTERCHANGEABLE
Indicator,humidity,plug
Altec Air, Llc Dba Altec Llc
5120-00-187-7133 INTERCHANGEABLE
Wrench,open End
6650-00-382-1696200405 INTERCHANGEABLE
Prism,optical Instrument
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6645-01-080-6052 INTERCHANGEABLE
Timer,interval
5935-01-086-6229200-405 INTERCHANGEABLE
Connector,plug,electrical
Autek Systems Corp
3110-01-264-57832004-05 INTERCHANGEABLE
Bearing,ball,annular
Leeson Electric Corp
Cross-Reference Index
Part NumberManufacturer
200405 Itt Industries Inc Itt Aerospace Communications Div East (USA)
200405 PRIMARY L3harris Technologies, Inc. Dba Harris Corporation (USA)
Related Parts
6685-00-179-4818INTERCHANGEABLE
INDICATOR,HUMIDITY,PLUG
P200-405
5120-00-187-7133INTERCHANGEABLE
WRENCH,OPEN END
6650-00-382-1696INTERCHANGEABLE
PRISM,OPTICAL INSTRUMENT
200405
6645-01-080-6052INTERCHANGEABLE
TIMER,INTERVAL
5935-01-086-6229INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
200-405
3110-01-264-5783INTERCHANGEABLE
BEARING,BALL,ANNULAR
2004-05

Frequently Asked Questions

What is NSN 5310-00-828-5451?

NSN 5310-00-828-5451 is a Washer,flat, manufactured by L3harris Technologies, Inc. Dba Harris Corporation, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-828-5451?

NSN 5310-00-828-5451 has 2 cross-referenced part numbers: 200405 (Itt Industries Inc Itt Aerospace Communications Div East), 200405 (L3harris Technologies, Inc. Dba Harris Corporation).

What NSN replaces 5310-00-828-5451?

There are 6 known substitutes for 5310-00-828-5451: 6685-00-179-4818, 5120-00-187-7133, 6650-00-382-1696 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 200405?

Key specifications for 200405: Thickness: 0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN; Center Hole Shape Style: ROUND; Hole Diameter: 0.312 INCHES NOMINAL IN; Material: COPPER ALLOY 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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