PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12Z3018-24Washer,lock

Naval Ordnance Standards · NSN 5310-00-595-7159 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-595-7159 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-595-7159. Primary manufacturer part number: 12Z3018-24.
Features
  • Washer,lock — FSC 5310
  • Material Thickness: 0.031 INCHES MINIMUM IN
  • Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Nondefinitive Spec/std Data: C CLASS AND 1 STYLE
  • Hole Diameter: 0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
  • Outside Diameter: 0.280 INCHES MAXIMUM IN
  • Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
  • Style Designator: SPLIT HELICAL-RIGHT HAND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 301 or Steel Comp 302 or Steel Comp 1080 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 3140 or Steel Comp 316 or Steel Comp 316l or Steel Comp 317 or Steel Comp 321 or Steel Comp 3310h or Steel Comp 347 or Steel Comp 348 or Steel Comp 384 or Steel Comp 385 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-595-7159, 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 10 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-595-7159
Primary Part Number12Z3018-24
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNaval Ordnance Standards
StatusACTIVE
Material Thickness0.031 INCHES MINIMUM IN
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Nondefinitive Spec/std DataC CLASS AND 1 STYLE
Hole Diameter0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
Outside Diameter0.280 INCHES MAXIMUM IN
Hardness Rating35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
Style DesignatorSPLIT HELICAL-RIGHT HAND
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Surface TreatmentPASSIVATE OVERALL
MaterialSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 1080 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 3140 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 3310H OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 384 OR STEEL COMP 385 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5310-00-058-29489157798-54 INTERCHANGEABLE
Washer,lock
Us Army Aviation and Missile Command
5310-00-209-123512Z3018-25 INTERCHANGEABLE
Washer,lock
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5310-00-262-3576 INTERCHANGEABLE
Washer,lock
5310-00-576-1023 INTERCHANGEABLE
Washer,lock
5310-00-576-1027 INTERCHANGEABLE
Washer,lock
5310-00-596-8771 INTERCHANGEABLE
Washer,lock
Cross-Reference Index
Part NumberManufacturer
12Z3018-24 Naval Ordnance Standards (USA)
FFW84CLASSCSTYLE1 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MS3533-80 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
12Z3018-24 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
5310-00-058-2948INTERCHANGEABLE
WASHER,LOCK
9157798-54
5310-00-209-1235INTERCHANGEABLE
WASHER,LOCK
12Z3018-25
5310-00-262-3576INTERCHANGEABLE
WASHER,LOCK
5310-00-576-1023INTERCHANGEABLE
WASHER,LOCK
5310-00-576-1027INTERCHANGEABLE
WASHER,LOCK
5310-00-596-8771INTERCHANGEABLE
WASHER,LOCK

Frequently Asked Questions

What is NSN 5310-00-595-7159?

NSN 5310-00-595-7159 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 5310-00-595-7159?

NSN 5310-00-595-7159 has 4 cross-referenced part numbers: 12Z3018-24 (Naval Ordnance Standards), FFW84CLASSCSTYLE1 (Federal Specifications Promulgated by General Services Administration Washington DC), MS3533-80 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 12Z3018-24 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 5310-00-595-7159?

There are 6 known substitutes for 5310-00-595-7159: 5310-00-058-2948, 5310-00-209-1235, 5310-00-262-3576 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12Z3018-24?

Key specifications for 12Z3018-24: Material Thickness: 0.031 INCHES MINIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Nondefinitive Spec/std Data: C CLASS AND 1 STYLE; Hole Diameter: 0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN. 10 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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