PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12Z3010-218Washer,lock

Naval Ordnance Standards · NSN 5310-00-551-0231 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-551-0231 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-551-0231. Primary manufacturer part number: 12Z3010-218.
Features
  • Washer,lock — FSC 5310
  • Material Thickness: 0.016 INCHES NOMINAL IN
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Hole Diameter: 0.195 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN
  • Material: COPPER ALLOY OVERALL
  • Outside Diameter: 0.300 INCHES MINIMUM AND 0.311 INCHES MAXIMUM IN
  • 2 verified cross-references
  • Primary manufacturer: Naval Ordnance Standards
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-551-0231, 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 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5310-00-551-0231
Primary Part Number12Z3010-218
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNaval Ordnance Standards
StatusCANCELLED
Material Thickness0.016 INCHES NOMINAL IN
Style DesignatorSPLIT HELICAL-RIGHT HAND
Hole Diameter0.195 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN
MaterialCOPPER ALLOY OVERALL
Outside Diameter0.300 INCHES MINIMUM AND 0.311 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
3110-00-120-3096 INTERCHANGEABLE
Bearing,roller,needle
5325-01-652-6655191006 INTERCHANGEABLE
Fastener Tape,hook
Velcro Usa Inc
Cross-Reference Index
Part NumberManufacturer
12Z3010-218 Naval Ordnance Standards (USA)
1910-06 Itw Shakeproof Automotive Products (USA)
Related Parts
3110-00-120-3096INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
5325-01-652-6655INTERCHANGEABLE
FASTENER TAPE,HOOK
191006

Frequently Asked Questions

What is NSN 5310-00-551-0231?

NSN 5310-00-551-0231 is a Washer,lock, manufactured by Naval Ordnance Standards, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-551-0231?

NSN 5310-00-551-0231 has 2 cross-referenced part numbers: 12Z3010-218 (Naval Ordnance Standards), 1910-06 (Itw Shakeproof Automotive Products).

What NSN replaces 5310-00-551-0231?

There are 2 known substitutes for 5310-00-551-0231: 3110-00-120-3096, 5325-01-652-6655. Verify interchangeability with system specifications before substitution.

What are the specifications of 12Z3010-218?

Key specifications for 12Z3010-218: Material Thickness: 0.016 INCHES NOMINAL IN; Style Designator: SPLIT HELICAL-RIGHT HAND; Hole Diameter: 0.195 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN; Material: COPPER ALLOY OVERALL. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-551-0231 still in active supply?

NSN 5310-00-551-0231 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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