PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12Z3018-54Washer,lock

Naval Ordnance Standards · NSN 5310-00-261-7415 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-261-7415 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-261-7415. Primary manufacturer part number: 12Z3018-54.
Features
  • Washer,lock — FSC 5310
  • Material Thickness: 0.056 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN
  • Material: STEEL COMP 410 OVERALL
  • Surface Treatment: PASSIVATE OVERALL
  • Departure From Cited Designator: AS MODIFIED BY MATERIAL
  • Hole Diameter: 0.319 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN
  • Material Document and Classification: QQ-S-766,CLASS 3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Outside Diameter: 0.575 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 410 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-261-7415, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Ordnance Standards. Government technical data includes 8 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
NSN5310-00-261-7415
Primary Part Number12Z3018-54
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNaval Ordnance Standards
StatusACTIVE
Material Thickness0.056 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN
MaterialSTEEL COMP 410 OVERALL
Surface TreatmentPASSIVATE OVERALL
Departure From Cited DesignatorAS MODIFIED BY MATERIAL
Hole Diameter0.319 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN
Material Document and ClassificationQQ-S-766,CLASS 3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Outside Diameter0.575 INCHES NOMINAL IN
Style DesignatorSPLIT HELICAL-RIGHT HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-167-0669 INTERCHANGEABLE
Washer,lock
Cross-Reference Index
Part NumberManufacturer
12Z3018-54 Naval Ordnance Standards (USA)
414908PC114 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
AN935-516L Aeronautical Standards Group Dept of Navy and Air Force (USA)
935C516L Numax Electronics Inc (USA)
Related Parts
5310-00-167-0669INTERCHANGEABLE
WASHER,LOCK

Frequently Asked Questions

What is NSN 5310-00-261-7415?

NSN 5310-00-261-7415 is a Washer,lock, manufactured by Naval Ordnance Standards, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-261-7415?

NSN 5310-00-261-7415 has 4 cross-referenced part numbers: 12Z3018-54 (Naval Ordnance Standards), 414908PC114 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), AN935-516L (Aeronautical Standards Group Dept of Navy and Air Force), 935C516L (Numax Electronics Inc).

What NSN replaces 5310-00-261-7415?

There is 1 known substitute for 5310-00-261-7415: 5310-00-167-0669. Verify interchangeability with system specifications before substitution.

What are the specifications of 12Z3018-54?

Key specifications for 12Z3018-54: Material Thickness: 0.056 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN; Material: STEEL COMP 410 OVERALL; Surface Treatment: PASSIVATE OVERALL; Departure From Cited Designator: AS MODIFIED BY MATERIAL. 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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