PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

104-3S516AWasher,lock

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5310-00-186-7510 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-186-7510 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-186-7510. Primary manufacturer part number: 104-3S516A.
Features
  • Washer,lock — FSC 5310
  • Style Designator: FLAT INTERNAL TEETH
  • Hole Diameter: 0.318 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN
  • Outside Diameter: 0.593 INCHES NOMINAL IN
  • Material Thickness: 0.036 INCHES NOMINAL IN
  • Surface Treatment: CADMIUM OR ZINC OVERALL
  • 6 verified cross-references
  • Primary manufacturer: Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-186-7510, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-186-7510
Primary Part Number104-3S516A
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusCANCELLED
Style DesignatorFLAT INTERNAL TEETH
Hole Diameter0.318 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN
Outside Diameter0.593 INCHES NOMINAL IN
Material Thickness0.036 INCHES NOMINAL IN
Surface TreatmentCADMIUM OR ZINC OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5310-00-167-0721MS35333-41 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5996-01-442-3676 INTERCHANGEABLE
Amplifier,electronic Control
Cross-Reference Index
Part NumberManufacturer
1218-00 Itw Shakeproof Automotive Products (USA)
STD475 Compagnie France Aviation (FRA)
STD475 Lane Aviation Corporation Dba Lane Aviation (USA)
STD475 Textron Lycoming Inc Williamsport Plant (USA)
104-3S516A PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
STD475 Satair A/s (DNK)
Related Parts
5310-00-167-0721INTERCHANGEABLE
WASHER,LOCK
MS35333-41
5996-01-442-3676INTERCHANGEABLE
AMPLIFIER,ELECTRONIC CONTROL

Frequently Asked Questions

What is NSN 5310-00-186-7510?

NSN 5310-00-186-7510 is a Washer,lock, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-186-7510?

NSN 5310-00-186-7510 has 6 cross-referenced part numbers: 1218-00 (Itw Shakeproof Automotive Products), STD475 (Compagnie France Aviation), STD475 (Lane Aviation Corporation Dba Lane Aviation), STD475 (Textron Lycoming Inc Williamsport Plant), 104-3S516A (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir) and 1 more.

What NSN replaces 5310-00-186-7510?

There are 2 known substitutes for 5310-00-186-7510: 5310-00-167-0721, 5996-01-442-3676. Verify interchangeability with system specifications before substitution.

What are the specifications of 104-3S516A?

Key specifications for 104-3S516A: Style Designator: FLAT INTERNAL TEETH; Hole Diameter: 0.318 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN; Outside Diameter: 0.593 INCHES NOMINAL IN; Material Thickness: 0.036 INCHES NOMINAL IN. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-186-7510 still in active supply?

NSN 5310-00-186-7510 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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