PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

78059Washer,lock

Fastenal Company · NSN 5310-01-708-1390 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-708-1390 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-708-1390. Primary manufacturer part number: 78059.
Features
  • Washer,lock — FSC 5310
  • Hole Width: 0.193 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
  • Outside Diameter: 0.334 INCHES NOMINAL IN
  • Material: STEEL CORROSION RESISTING OVERALL
  • 1 verified cross-reference
  • Primary manufacturer: Fastenal Company
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-01-708-1390, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Fastenal Company. Government technical data includes 3 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-708-1390
Primary Part Number78059
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFastenal Company
StatusACTIVE
Hole Width0.193 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
Outside Diameter0.334 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5820-00-497-98021361 INTERCHANGEABLE
Case
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
5998-01-226-050178059 INTERCHANGEABLE
Circuit Card Assembly
Setra Systems, Inc. Dba Gems Sensors
3835-01-544-4151 INTERCHANGEABLE
Displacement and Evacuation Kit,
Cross-Reference Index
Part NumberManufacturer
78059 PRIMARY Fastenal Company (USA)
Related Parts
5820-00-497-9802INTERCHANGEABLE
CASE
1361
5998-01-226-0501INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
78059
3835-01-544-4151INTERCHANGEABLE
DISPLACEMENT AND EVACUATION KIT,

Frequently Asked Questions

What is NSN 5310-01-708-1390?

NSN 5310-01-708-1390 is a Washer,lock, manufactured by Fastenal Company, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-708-1390?

NSN 5310-01-708-1390 has 1 cross-referenced part number: 78059 (Fastenal Company).

What NSN replaces 5310-01-708-1390?

There are 3 known substitutes for 5310-01-708-1390: 5820-00-497-9802, 5998-01-226-0501, 3835-01-544-4151. Verify interchangeability with system specifications before substitution.

What are the specifications of 78059?

Key specifications for 78059: Part Name Assigned by Controlling Agency: MEDIUM SPLIT LOCK WASHER; Overall Height: 0.047 INCHES NOMINAL IN; Hole Width: 0.193 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN; Overall Width: 0.043 INCHES NOMINAL IN. 6 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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