PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S428-2Washer,flat

Northrop Grumman Systems Corporation · NSN 5310-00-596-9869 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-596-9869 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-596-9869. Primary manufacturer part number: S428-2.
Features
  • Washer,flat — FSC 5310
  • Thickness: 0.016 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN
  • Overall Diameter: 0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Material Document and Classification: QQ-S-685-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Center Hole Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Surface Treatment: CADMIUM OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-596-9869, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 10 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
NSN5310-00-596-9869
Primary Part NumberS428-2
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation
StatusACTIVE
Thickness0.016 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN
Overall Diameter0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Material Document and ClassificationQQ-S-685-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Center Hole Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Surface TreatmentCADMIUM OVERALL
Peripheral Shape StyleROUND
Surface Treatment Document and ClassificationQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Hole Diameter0.198 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-010-3028 INTERCHANGEABLE
Nut,plain,hexagon
Cross-Reference Index
Part NumberManufacturer
S428-2 PRIMARY Northrop Grumman Systems Corporation (USA)
Related Parts
5310-00-010-3028INTERCHANGEABLE
NUT,PLAIN,HEXAGON

Frequently Asked Questions

What is NSN 5310-00-596-9869?

NSN 5310-00-596-9869 is a Washer,flat, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-596-9869?

NSN 5310-00-596-9869 has 1 cross-referenced part number: S428-2 (Northrop Grumman Systems Corporation).

What NSN replaces 5310-00-596-9869?

There is 1 known substitute for 5310-00-596-9869: 5310-00-010-3028. Verify interchangeability with system specifications before substitution.

What are the specifications of S428-2?

Key specifications for S428-2: Thickness: 0.016 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN; Overall Diameter: 0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN; Material: STEEL OVERALL; Material Document and Classification: QQ-S-685-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 10 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