PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS620B10LWasher,flat

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5310-00-060-9576 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-060-9576 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-060-9576. Primary manufacturer part number: NAS620B10L.
Features
  • Washer,flat — FSC 5310
  • Material: COPPER ALLOY 268 OVERALL
  • Material Document and Classification: QQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Hole Diameter: 0.195 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
  • Surface Treatment: CADMIUM AND CHROMATE OVERALL
  • Peripheral Shape Style: ROUND
  • Center Hole Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy 268 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-060-9576, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, 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
NSN5310-00-060-9576
Primary Part NumberNAS620B10L
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusACTIVE
MaterialCOPPER ALLOY 268 OVERALL
Material Document and ClassificationQQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Hole Diameter0.195 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Peripheral Shape StyleROUND
Center Hole Shape StyleROUND
Thickness0.032 INCHES NOMINAL IN
Overall Diameter0.349 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-264-06945635 INTERCHANGEABLE
Washer,flat
Brinkley Technology Group Llc Dba Hercules Manufacturing
Cross-Reference Index
Part NumberManufacturer
10116529 Nimikkeistokeskus Ncb Finland (FIN)
NAS620B10L PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
947620-3131 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
310-0740-510 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
Related Parts
5310-00-264-0694INTERCHANGEABLE
WASHER,FLAT
5635

Frequently Asked Questions

What is NSN 5310-00-060-9576?

NSN 5310-00-060-9576 is a Washer,flat, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-060-9576?

NSN 5310-00-060-9576 has 4 cross-referenced part numbers: 10116529 (Nimikkeistokeskus Ncb Finland), NAS620B10L (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 947620-3131 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 310-0740-510 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).

What NSN replaces 5310-00-060-9576?

There is 1 known substitute for 5310-00-060-9576: 5310-00-264-0694. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS620B10L?

Key specifications for NAS620B10L: Material: COPPER ALLOY 268 OVERALL; Material Document and Classification: QQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Hole Diameter: 0.195 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN. 9 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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