PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12Z3018-25Washer,lock

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5310-00-209-1235 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-209-1235 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-209-1235. Primary manufacturer part number: 12Z3018-25.
Features
  • Washer,lock — FSC 5310
  • Nondefinitive Spec/std Data: C CLASS AND 1 STYLE
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Material: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 385 OR STEEL COMP 384 OVERALL
  • Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL
  • Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
  • Hole Diameter: 0.194 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
  • Outside Diameter: 0.323 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 301 or Steel Comp 302 or Steel Comp 303 or Steel Comp 303SE or Steel Comp 304 or Steel Comp 304l or Steel Comp 305 or Steel Comp 308 or Steel Comp 309 or Steel Comp 309s or Steel Comp 310 or Steel Comp 310s or Steel Comp 314 or Steel Comp 316 or Steel Comp 316l or Steel Comp 317 or Steel Comp 321 or Steel Comp 347 or Steel Comp 348 or Steel Comp 385 or Steel Comp 384 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-209-1235, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-209-1235
Primary Part Number12Z3018-25
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusCANCELLED
Nondefinitive Spec/std DataC CLASS AND 1 STYLE
Style DesignatorSPLIT HELICAL-RIGHT HAND
MaterialSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 385 OR STEEL COMP 384 OVERALL
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Hardness Rating35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
Hole Diameter0.194 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
Outside Diameter0.323 INCHES MAXIMUM IN
Material Thickness0.040 INCHES MINIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5310-00-058-29489157798-54 INTERCHANGEABLE
Washer,lock
Us Army Aviation and Missile Command
5310-00-262-3576 INTERCHANGEABLE
Washer,lock
5310-00-576-1023 INTERCHANGEABLE
Washer,lock
5310-00-576-1027 INTERCHANGEABLE
Washer,lock
5310-00-595-7159 INTERCHANGEABLE
Washer,lock
5310-00-596-8771 INTERCHANGEABLE
Washer,lock
Cross-Reference Index
Part NumberManufacturer
12Z3018-25 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
FFW84CLASSCSTYLE1 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
852961 Eastman Kodak Co (USA)
Related Parts
5310-00-058-2948INTERCHANGEABLE
WASHER,LOCK
9157798-54
5310-00-262-3576INTERCHANGEABLE
WASHER,LOCK
5310-00-576-1023INTERCHANGEABLE
WASHER,LOCK
5310-00-576-1027INTERCHANGEABLE
WASHER,LOCK
5310-00-595-7159INTERCHANGEABLE
WASHER,LOCK
5310-00-596-8771INTERCHANGEABLE
WASHER,LOCK

Frequently Asked Questions

What is NSN 5310-00-209-1235?

NSN 5310-00-209-1235 is a Washer,lock, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-209-1235?

NSN 5310-00-209-1235 has 3 cross-referenced part numbers: 12Z3018-25 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), FFW84CLASSCSTYLE1 (Federal Specifications Promulgated by General Services Administration Washington DC), 852961 (Eastman Kodak Co).

What NSN replaces 5310-00-209-1235?

There are 6 known substitutes for 5310-00-209-1235: 5310-00-058-2948, 5310-00-262-3576, 5310-00-576-1023 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12Z3018-25?

Key specifications for 12Z3018-25: Nondefinitive Spec/std Data: C CLASS AND 1 STYLE; Style Designator: SPLIT HELICAL-RIGHT HAND; Material: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 385 OR STEEL COMP 384 OVERALL; Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-209-1235 still in active supply?

NSN 5310-00-209-1235 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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